Pavel Bobek
type: MusicGroup
description: Pavel Bobek (16 September 1937 − 20 November 2013) was a Czech singer. Career 198px|thumb|left|Bobek at a book signing in March 2009. From 1963 to 1965 he was the vocalist of the pioneering classic r
popularity: 37
followers: 20036
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3a8d605856a92c8881e69f1faadf1535d3ceb3778ee3264beda6a3bd64da54. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9fe30ab-e0c9-4804-953c-fc111a20577a.json and https://artists.proofprofile.net/proofs/artist/f9fe30ab-e0c9-4804-953c-fc111a20577a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
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album: Duety
  type: MusicAlbum
  date published: 2015-10-02
  track: Až Nám Bude Dvakrát Tolik
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    duration: PT3M2S
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    explicit: false
    by artist: Karel Gott
    by artist: Vlasta Průchová
    in album: Duety
      type: MusicAlbum
      date published: 2015-10-02
    popularity: 2
    genre: czech-pop
    isrc code: CZA166200033
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166200033
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1d05a0b86c6a4934a5b1aa2cd689822f086773e766888780f64dda205f68c2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166200033 — a six-check JSON result.
      date published: 2026-07-08T03:20:19Z
    audio: Až Nám Bude Dvakrát Tolik
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  track: Je Krásné Lásku Dát
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    duration: PT2M54S
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    by artist: Karel Gott
    by artist: Milan Chladil
    in album: Duety
      type: MusicAlbum
      date published: 2015-10-02
    popularity: 2
    genre: czech-pop
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166400178
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T20:42:35Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cc5d72a674a1a0c5501ec47d3e1119ce825b2b01103317d1ec75c1c45bc216. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166400178 — a six-check JSON result.
      date published: 2026-07-31T20:42:35Z
    audio: Je Krásné Lásku Dát
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.278
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
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      additional property: Instrumentalness
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        value: 0
      additional property: Liveness
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      additional property: Valence (Positivity)
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  track: Miluj Mne Nebo Opusť
  track: Den Je Krásný
  track: Dotýkat Se Hvězd
  track: Tak Abyste To Věděla
  track: Dívka Toulavá
  track: Princezna V Hermelínu
  track: Silvestrovská Opera - Směs - Silvestr '74
  track: Jsem Na Světě Rád
  track: Píšu Vám
  track: Vzpomínková Směs Písní VII. - Tentokrát Ze Světa Operety
  track: Dávné Lásky
  track: Polská Krev
  track: Plavá Víla
  track: Zvonky Štěstí
  track: Svět stál
  track: Najednou
  track: Gib mir ein Zeichen
  track: Čau, Lásko
  track: Párkrát Mlčet
  track: Neznámy Pár
  track: Náš Song
  track: Adagio
  track: Smím Dál I.
  track: Jarmark Ve Scarborough
  track: Panis Angelicus - Live
  track: Mží
  track: Ich bin da, um dich zu lieben
  track: Svet Lásku Má
  track: Věrné Milování
  track: This World Is Magic
album: Písničky Plné Vzpomínek
album: Nejde Zapomenout
album: Karel Zich 1969-1987
album: Tři Jsou Někdy Víc
album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
album: Vsem divkam, co jsem mel kdy rad
album: Mirek Černý 80 Jubilejní Edice
album: Country Gold 60. & 70. Léta

Valence (Positivity)
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value: 0.471

Loudness (dB)
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value: -9.424

Key Name
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value: F

Mode Name
type: PropertyValue
value: Minor

Miluj Mne Nebo Opusť
type: MusicRecording
duration: PT2M31S
duration ms: 151146
explicit: false
by artist: Karel Gott
by artist: Karel Štědrý
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA166500099
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x44498c56eb5fe923ce349cdde0c1cffc3e0d0e3dc68c88c7dcea9cb90791656c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44498c56eb5fe923ce349cdde0c1cffc3e0d0e3dc68c88c7dcea9cb90791656c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500099 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Miluj Mne Nebo Opusť
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
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    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.352
  additional property: Energy
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    value: 0.751
  additional property: Speechiness
    type: PropertyValue
    value: 0.131
  additional property: Acousticness
    type: PropertyValue
    value: 0.647
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.332
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Den Je Krásný
type: MusicRecording
duration: PT2M46S
duration ms: 166826
explicit: false
by artist: Karel Gott
by artist: Jana Petrů
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 4
genre: czech-pop
isrc code: CZA166500275
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T07:08:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1ebe461d548b2e5566ddeea9e05cc1024402cb653298fceb75c2cca93c270d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500275
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ebe461d548b2e5566ddeea9e05cc1024402cb653298fceb75c2cca93c270d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500275 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Den Je Krásný
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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Dotýkat Se Hvězd
type: MusicRecording
duration: PT3M15S
duration ms: 195653
explicit: false
by artist: Karel Gott
by artist: Eva Pilarová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: CZA161003839
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-06-11T06:32:27+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161003839
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa747031b5ffd60bb8f8c7d39e07565d28c775a3fedb2b58aabce8cff56e5749d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161003839 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Dotýkat Se Hvězd
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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Tak Abyste To Věděla
type: MusicRecording
duration: PT3M28S
duration ms: 208773
explicit: false
by artist: Karel Gott
by artist: Hana Hegerova
by artist: Waldemar Matuška
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 7
genre: czech-pop
isrc code: CZA161102397
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-03T05:38:30+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f6c2af01400cf49a3557f9a5afd707658d5e27303118544cf5db5b535a12f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161102397 — a six-check JSON result.
  date published: 2026-07-07T18:39:05Z
audio: Tak Abyste To Věděla
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.316
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.533
  additional property: Energy
    type: PropertyValue
    value: 0.728
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.503
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.242
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.658
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.445
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dívka Toulavá
type: MusicRecording
duration: PT3M32S
duration ms: 212160
explicit: false
by artist: Karel Gott
by artist: Karel Hála
by artist: Jiří Kysilka
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA166600241
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T00:56:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22dde3d844db959e18bdaa6565ede45a39de3195f0c1ded04892c6ea14117a9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166600241
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dde3d844db959e18bdaa6565ede45a39de3195f0c1ded04892c6ea14117a9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166600241 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Dívka Toulavá
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.822
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.423
  additional property: Energy
    type: PropertyValue
    value: 0.528
  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.496
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.281
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.319
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.316
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Princezna V Hermelínu
type: MusicRecording
duration: PT2M47S
duration ms: 167906
explicit: false
by artist: Karel Gott
by artist: Hana Hegerova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA161340124
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T22:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02d735ff42273feb015aafe0ff7dd52244da34393df0c322f31e3deadaac833e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161340124
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d735ff42273feb015aafe0ff7dd52244da34393df0c322f31e3deadaac833e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161340124 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Princezna V Hermelínu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.694
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.174
  additional property: Energy
    type: PropertyValue
    value: 0.632
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.872
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.227
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Silvestrovská Opera - Směs - Silvestr '74
type: MusicRecording
duration: PT10M21S
duration ms: 621120
explicit: false
by artist: Karel Gott
by artist: Waldemar Matuška
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: CZA161100296
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23e4bb72528fce175e751448cd62e8649888dde13369b59aad9cda8b86a9bba5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100296
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e4bb72528fce175e751448cd62e8649888dde13369b59aad9cda8b86a9bba5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100296 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Silvestrovská Opera - Směs - Silvestr '74
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.998
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.599
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.555
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.334
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.203
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Jsem Na Světě Rád
type: MusicRecording
duration: PT3M11S
duration ms: 191213
explicit: false
by artist: Karel Gott
by artist: Naďa Urbánková
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: CZA161100670
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:24:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x080ed4ebf407a5fd6ab06fde601e2804bab8493c3a0f96916636200031462a75
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100670
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080ed4ebf407a5fd6ab06fde601e2804bab8493c3a0f96916636200031462a75. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100670 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Jsem Na Světě Rád
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.264
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.299
  additional property: Energy
    type: PropertyValue
    value: 0.379
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.676
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.221
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.529
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.666
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Píšu Vám
type: MusicRecording
duration: PT2M50S
duration ms: 170386
explicit: false
by artist: Karel Gott
by artist: Waldemar Matuška
by artist: Václav Neckář
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 3
genre: czech-pop
isrc code: CZA161100652
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T21:33:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e261d126d186619cbeb35f0de5a732f380b0c9cee8a128a3a9db5eb917942cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960321
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100652
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e261d126d186619cbeb35f0de5a732f380b0c9cee8a128a3a9db5eb917942cd. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100652 — a six-check JSON result.
  date published: 2026-07-30T22:27:30Z
audio: Píšu Vám
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.964
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.23
  additional property: Energy
    type: PropertyValue
    value: 0.427
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.805
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.383
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.204
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.377
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vzpomínková Směs Písní VII. - Tentokrát Ze Světa Operety
type: MusicRecording
duration: PT3M42S
duration ms: 222946
explicit: false
by artist: Karel Gott
by artist: Jiří Korn
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA161542538
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:46:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x352da333b93e4630419f84edab3a9e5783711e7ce11a82580d55ac2926690ea8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161542538
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352da333b93e4630419f84edab3a9e5783711e7ce11a82580d55ac2926690ea8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161542538 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vzpomínková Směs Písní VII. - Tentokrát Ze Světa Operety
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.786
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.382
  additional property: Energy
    type: PropertyValue
    value: 0.752
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.209
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.375
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.805
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.213
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dávné Lásky
type: MusicRecording
duration: PT3M10S
duration ms: 190506
explicit: false
by artist: Karel Gott
by artist: Hana Zagorová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA168000010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54e9461380a32d00db5ebfc9a26a69ac6ad506fdf07b0963476bbaa80504505e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e9461380a32d00db5ebfc9a26a69ac6ad506fdf07b0963476bbaa80504505e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000010 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Dávné Lásky
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.259
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.312
  additional property: Energy
    type: PropertyValue
    value: 0.567
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.554
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.205
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.51
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Polská Krev
type: MusicRecording
duration: PT3M12S
duration ms: 192133
explicit: false
by artist: Karel Gott
by artist: Waldemar Matuška
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA168300232
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:21:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e475551143f7c8ad77b769a1425e8466ef338f709ff53b15c16ffdddb17824b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300232
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e475551143f7c8ad77b769a1425e8466ef338f709ff53b15c16ffdddb17824b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300232 — a six-check JSON result.
  date published: 2026-07-31T13:50:38Z
audio: Polská Krev
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.454
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.68
  additional property: Energy
    type: PropertyValue
    value: 0.679
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.579
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.86
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.855
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Plavá Víla
type: MusicRecording
duration: PT3M46S
duration ms: 226893
explicit: false
by artist: Karel Gott
by artist: Nataša Bajcúrová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA168300270
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:12:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e31c51fffa8a2039f19f3947067d11c5afff3bf09b99b78120eda870179c78e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300270
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e31c51fffa8a2039f19f3947067d11c5afff3bf09b99b78120eda870179c78e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300270 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Plavá Víla
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.063
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.487
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.513
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.276
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.195
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zvonky Štěstí
type: MusicRecording
duration: PT3M35S
duration ms: 215266
explicit: false
by artist: Karel Gott
by artist: Darina Rolincová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 3
genre: czech-pop
isrc code: CZA168400017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78329217bb8baaa85e2ec0d4dfede84b75637c273d24910c54ddcb65899e75ea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960321
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168400017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78329217bb8baaa85e2ec0d4dfede84b75637c273d24910c54ddcb65899e75ea. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168400017 — a six-check JSON result.
  date published: 2026-07-30T22:27:30Z
audio: Zvonky Štěstí
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.52
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.54
  additional property: Energy
    type: PropertyValue
    value: 0.522
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.202
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.424
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.241
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Svět stál
type: MusicRecording
duration: PT3M35S
duration ms: 215133
explicit: false
by artist: Jitka Zelenková
by artist: Karel Gott
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: classic-czech-pop
isrc code: CZA168500016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43ae4d77d9eb6b288c2fe1b4301a9dd202298d8e0ec9327e641dd085a0ef6664
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ae4d77d9eb6b288c2fe1b4301a9dd202298d8e0ec9327e641dd085a0ef6664. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500016 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Svět stál
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.275
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.297
  additional property: Energy
    type: PropertyValue
    value: 0.408
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.667
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.161
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.282
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.178
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Najednou
type: MusicRecording
duration: PT3M50S
duration ms: 230946
explicit: false
by artist: Karel Gott
by artist: Marie Rottrova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA168600101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03e793d1d8bc33370a70aff5d0b23ee350e8b731baafe186351ae0c9fb8f6caf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960370
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e793d1d8bc33370a70aff5d0b23ee350e8b731baafe186351ae0c9fb8f6caf. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600101 — a six-check JSON result.
  date published: 2026-07-31T08:38:45Z
audio: Najednou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.748
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.939
  additional property: Speechiness
    type: PropertyValue
    value: 0.305
  additional property: Acousticness
    type: PropertyValue
    value: 0.316
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.396
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.742
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Gib mir ein Zeichen
type: MusicRecording
duration: PT4M17S
duration ms: 257826
explicit: false
by artist: Karel Gott
by artist: Darina Rolincová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: DEF068603750
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:13:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc95c6d2bb809fdb35933065c204265917b26bca9564ca9f16627fd365c78bd4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF068603750
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95c6d2bb809fdb35933065c204265917b26bca9564ca9f16627fd365c78bd4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF068603750 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Gib mir ein Zeichen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.928
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.562
  additional property: Energy
    type: PropertyValue
    value: 0.582
  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.54
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.264
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.512
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.898
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Čau, Lásko
type: MusicRecording
duration: PT3M34S
duration ms: 214973
explicit: false
by artist: Karel Gott
by artist: Marcela Holanova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 9
genre: czech-pop
isrc code: CZA168600009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T08:27:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x962bf2bf80097e1d3a2d0609bdd7de8a7a5090a7e97aebf2952dc311057aa1d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600009
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962bf2bf80097e1d3a2d0609bdd7de8a7a5090a7e97aebf2952dc311057aa1d8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600009 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Čau, Lásko
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 156.166
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.432
  additional property: Energy
    type: PropertyValue
    value: 0.631
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.22
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.352
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.23
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Párkrát Mlčet
type: MusicRecording
duration: PT3M30S
duration ms: 210573
explicit: false
by artist: Karel Gott
by artist: Sylva Schneiderová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 3
genre: czech-pop
isrc code: CZD948700005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T19:46:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe87c53253b339912b5e0feefb4a18ef3f62f2264848afa360b47c43e6dc484eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZD948700005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87c53253b339912b5e0feefb4a18ef3f62f2264848afa360b47c43e6dc484eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZD948700005 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Párkrát Mlčet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.976
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.43
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.252
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.407
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Neznámy Pár
type: MusicRecording
duration: PT4M23S
duration ms: 263800
explicit: false
by artist: Karel Gott
by artist: Marika Gombitova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 7
genre: czech-pop
isrc code: SKA128791510
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9dfa9f24d074f286ac4391b9ffb855af3cb585c12309f098e91fc46a1bb2cdc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKA128791510
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dfa9f24d074f286ac4391b9ffb855af3cb585c12309f098e91fc46a1bb2cdc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKA128791510 — a six-check JSON result.
  date published: 2026-07-29T19:35:34Z
audio: Neznámy Pár
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.825
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.575
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.467
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.19
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.116
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Náš Song
type: MusicRecording
duration: PT4M2S
duration ms: 242253
explicit: false
by artist: Karel Gott
by artist: Marcela Holanova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 6
genre: czech-pop
isrc code: CZA168700002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:50:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75648024698325e60eb232ee78e102859f245adf60b91de2c8419bf461c5321b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75648024698325e60eb232ee78e102859f245adf60b91de2c8419bf461c5321b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700002 — a six-check JSON result.
  date published: 2026-07-07T18:50:38Z
audio: Náš Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 154.764
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.275
  additional property: Energy
    type: PropertyValue
    value: 0.669
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.512
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.165
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.912
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Adagio
type: MusicRecording
duration: PT3M54S
duration ms: 234120
explicit: false
by artist: Karel Gott
by artist: Marcela Holanova
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: CZA161101102
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6be1c2054737bb464ed3c7852205181b33b66d12015f9ab01bd569d5fc0ffed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161101102
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6be1c2054737bb464ed3c7852205181b33b66d12015f9ab01bd569d5fc0ffed. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161101102 — a six-check JSON result.
  date published: 2026-07-31T15:59:18Z
audio: Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.049
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.126
  additional property: Energy
    type: PropertyValue
    value: 0.474
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.63
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.762
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Smím Dál I.
type: MusicRecording
duration: PT4M27S
duration ms: 267306
explicit: false
by artist: Karel Gott
by artist: Iveta Bartošová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA169300151
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97bdd80fda021bd8f1dc11be95acc140e74301c32ec050a10579214ed00fb5b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169300151
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bdd80fda021bd8f1dc11be95acc140e74301c32ec050a10579214ed00fb5b3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169300151 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Smím Dál I.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.256
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.293
  additional property: Energy
    type: PropertyValue
    value: 0.382
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.62
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.186
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.107
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Jarmark Ve Scarborough
type: MusicRecording
duration: PT3M9S
duration ms: 189800
explicit: false
by artist: Karel Gott
by artist: Marta Kubišová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 12
genre: czech-pop
isrc code: CZA161003700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T19:21:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64599d52eb0be8f2f4d10e41089bd889eeb08a4fc1eee34a038a31d750e7568c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161003700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64599d52eb0be8f2f4d10e41089bd889eeb08a4fc1eee34a038a31d750e7568c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161003700 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Jarmark Ve Scarborough
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.955
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.425
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.464
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.421
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.911
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Panis Angelicus - Live
type: MusicRecording
duration: PT3M38S
duration ms: 218173
explicit: false
by artist: Karel Gott
by artist: Ladislav Krizek
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 3
genre: czech-pop
isrc code: CZA161540947
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:38:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf10e5b1ce7a9290735f0bad088a4702e326b8643efa5f1fab15a522ac348930f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540947
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10e5b1ce7a9290735f0bad088a4702e326b8643efa5f1fab15a522ac348930f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540947 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Panis Angelicus - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.539
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.303
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.87
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.077
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.102
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mží
type: MusicRecording
duration: PT3M59S
duration ms: 239960
explicit: false
by artist: Karel Gott
by artist: Hana Zagorová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: CZA161100977
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T11:47:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb14a991381ca0478879b7b3d250e3e18238402dcc353598b01907e23fd723b67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100977
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14a991381ca0478879b7b3d250e3e18238402dcc353598b01907e23fd723b67. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100977 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mží
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.087
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.609
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.522
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.168
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.371
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ich bin da, um dich zu lieben
type: MusicRecording
duration: PT3M55S
duration ms: 235613
explicit: false
by artist: Karel Gott
by artist: Daliah Lavi
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: czech-pop
isrc code: DEF069411040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T02:26:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a89a1743762bce32a9a7fb28a2031343cb068eb66ce09439fc03820d91c931c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF069411040
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a89a1743762bce32a9a7fb28a2031343cb068eb66ce09439fc03820d91c931c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF069411040 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Ich bin da, um dich zu lieben
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.363
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.557
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.468
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.144
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.302
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Svet Lásku Má
type: MusicRecording
duration: PT5M23S
duration ms: 323053
explicit: false
by artist: Karel Gott
by artist: Pavol Habera
by artist: Peter Dvorsky
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 29
genre: czech-pop
isrc code: CZA100308177
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T23:22:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70678a8bfe61f739e4ac500246ab6965deece2a41056447a74131894f83dc534
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA100308177
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70678a8bfe61f739e4ac500246ab6965deece2a41056447a74131894f83dc534. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA100308177 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: Svet Lásku Má
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.737
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.114
  additional property: Energy
    type: PropertyValue
    value: 0.46
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.683
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.623
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Věrné Milování
type: MusicRecording
duration: PT3M2S
duration ms: 182653
explicit: false
by artist: Karel Gott
by artist: Darina Rolincová
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA161502239
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:43:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0d308cb5e45443a70a9a72d52ad77ad88bf3aaf7919f2dbf66ff4777a53d792d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161502239
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d308cb5e45443a70a9a72d52ad77ad88bf3aaf7919f2dbf66ff4777a53d792d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161502239 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Věrné Milování
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.427
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.313
  additional property: Energy
    type: PropertyValue
    value: 0.625
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.113
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.541
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.278
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

This World Is Magic
type: MusicRecording
duration: PT4M7S
duration ms: 247640
explicit: false
by artist: Karel Gott
by artist: DJ BoBo
in album: Duety
  type: MusicAlbum
  date published: 2015-10-02
popularity: 1
genre: czech-pop
isrc code: CZA161502240
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:23:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb4a0b78d1efb58fa1a93939767c82e590222fc35e0447e41c002e8ef5610169
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161502240
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4a0b78d1efb58fa1a93939767c82e590222fc35e0447e41c002e8ef5610169. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161502240 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: This World Is Magic
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.573
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.633
  additional property: Energy
    type: PropertyValue
    value: 0.672
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.294
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.29
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.49
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.535
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Písničky Plné Vzpomínek
type: MusicAlbum
date published: 2016-10-14
track: Jednoho Dne Se Vrátíš
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278000
  explicit: false
  by artist: Věra Špinarová
  in album: Písničky Plné Vzpomínek
    type: MusicAlbum
    date published: 2016-10-14
  popularity: 4
  isrc code: CZA167900013
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T06:49:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7e04c5e4e408176076bd351b7465795ecb7f6453089f279c806cefec066bb81b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900013
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04c5e4e408176076bd351b7465795ecb7f6453089f279c806cefec066bb81b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900013 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Jednoho Dne Se Vrátíš
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.373
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.174
    additional property: Energy
      type: PropertyValue
      value: 0.316
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.646
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.08
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.412
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tam U Nebeských Bran
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231000
  explicit: false
  by artist: Michal Tučný
  in album: Písničky Plné Vzpomínek
    type: MusicAlbum
    date published: 2016-10-14
  popularity: 2
  isrc code: CZA168300013
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T14:10:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f040af5cada1e66ddbaf09b9494b69b3f4b8bd377bec20ee6437a49705ead0c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300013
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f040af5cada1e66ddbaf09b9494b69b3f4b8bd377bec20ee6437a49705ead0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300013 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Tam U Nebeských Bran
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.108
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.414
    additional property: Energy
      type: PropertyValue
      value: 0.473
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.49
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.129
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.459
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.166
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Náhrobní Kámen
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232000
  explicit: false
  by artist: Petr Novak
  in album: Písničky Plné Vzpomínek
    type: MusicAlbum
    date published: 2016-10-14
  popularity: 1
  isrc code: CZA166700045
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:33:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x779a977e3758d751ac64d87619d681e06266131e4281b3114083279ac58aaeb7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Náhrobní Kámen
track: Závidím
track: Popelky
track: Čekej Tiše
track: Když Jsem Já Byl Tenkrát Kluk
track: Anjelik Môj I
track: Haleluja
track: Řekni, Kde Ty Kytky Jsou
track: Dvě Slůvka
track: Lásko, Mně Ubývá Sil
track: To Mám Tak Ráda
track: Jantarový Komnaty
track: Až Mě Andělé...
track: Měsíční Řeka
track: Krásné Je Žít
track: Sbohem, Lásko
track: Poslední Rallye
track: Šípková Růženka
track: Tichá Píseň
track: Líto, Je Mi Líto
track: Žila Som Správne (My Way) - Live

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700045

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779a977e3758d751ac64d87619d681e06266131e4281b3114083279ac58aaeb7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700045 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Náhrobní Kámen
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 123.949
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.57
additional property: Energy
  type: PropertyValue
  value: 0.568
additional property: Speechiness
  type: PropertyValue
  value: 0.026
additional property: Acousticness
  type: PropertyValue
  value: 0.168
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.119
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.558
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.022
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Závidím
type: MusicRecording
duration: PT3M44S
duration ms: 224000
explicit: false
by artist: Naďa Urbánková
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 0
genre: classic-czech-pop
isrc code: CZA167200290
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T22:07:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca806e38ec007372017662eec60ce0709ca5fc4abf385bb29de8bdd430c09948
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca806e38ec007372017662eec60ce0709ca5fc4abf385bb29de8bdd430c09948. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200290 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Závidím
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.657
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.365
  additional property: Energy
    type: PropertyValue
    value: 0.387
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.782
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.121
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.278
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Popelky
type: MusicRecording
duration: PT2M58S
duration ms: 178000
explicit: false
by artist: Karel Černoch
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
genre: czech-folk
genre: classic-czech-pop
genre: czech-country
isrc code: CZA167100524
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T03:49:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa248c186e47d76f96311955506b921043642e355dcd1465264c225396b803cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167100524
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa248c186e47d76f96311955506b921043642e355dcd1465264c225396b803cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167100524 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Popelky
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.567
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.542
  additional property: Energy
    type: PropertyValue
    value: 0.316
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.812
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.426
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.277
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Čekej Tiše
type: MusicRecording
duration: PT3M10S
duration ms: 190000
explicit: false
by artist: Eva Olmerova
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA166900208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x101684ade5df461ce4506c78030829d54f6c778a279debb354cbdf0539edc584
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900208
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101684ade5df461ce4506c78030829d54f6c778a279debb354cbdf0539edc584. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900208 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Čekej Tiše
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.368
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.279
  additional property: Energy
    type: PropertyValue
    value: 0.577
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.598
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.329
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.526
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.999
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Když Jsem Já Byl Tenkrát Kluk
type: MusicRecording
duration: PT3M20S
duration ms: 200000
explicit: false
by artist: Karel Gott
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 2
genre: czech-pop
isrc code: CZA168100140
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:40:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6211cb8f28181d5e8223ee701123247f339064305827c7bc100001e7983e47b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100140
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6211cb8f28181d5e8223ee701123247f339064305827c7bc100001e7983e47b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100140 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Když Jsem Já Byl Tenkrát Kluk
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.123
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.358
  additional property: Energy
    type: PropertyValue
    value: 0.548
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.613
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.302
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.931
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Anjelik Môj I
type: MusicRecording
duration: PT3M39S
duration ms: 219000
explicit: false
by artist: Darina Rolincová
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 3
isrc code: CZA169000032
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:45:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x438435fb9fc00a2ccda2c16718fb5cc35eb1c8487b9b8c2bda1d09e46ca5ae8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960193
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960193
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169000032
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:05:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438435fb9fc00a2ccda2c16718fb5cc35eb1c8487b9b8c2bda1d09e46ca5ae8f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169000032 — a six-check JSON result.
  date published: 2026-07-30T02:05:19Z
audio: Anjelik Môj I
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.443
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.256
  additional property: Energy
    type: PropertyValue
    value: 0.331
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.896
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.285
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Haleluja
type: MusicRecording
duration: PT4M12S
duration ms: 252000
explicit: false
by artist: Jakub Smolik
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 2
isrc code: CZA541010801
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-30T02:28:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7fc2ea1d96b72227b22cba5d3d1c5bcf20aaf6e63ffa9a4a101a5e00affe12f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA541010801
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fc2ea1d96b72227b22cba5d3d1c5bcf20aaf6e63ffa9a4a101a5e00affe12f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA541010801 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Haleluja
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.166
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.211
  additional property: Energy
    type: PropertyValue
    value: 0.315
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.602
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.144
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.728
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Řekni, Kde Ty Kytky Jsou
type: MusicRecording
duration: PT3M46S
duration ms: 226000
explicit: false
by artist: Judita Cerovská
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 2
isrc code: CZA166500065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T10:51:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dc96812e973aec4e81f6d05bab9e4e33e4760f606d4d4dedf68b74be8b8b6e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166500065 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Řekni, Kde Ty Kytky Jsou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.535
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.633
  additional property: Energy
    type: PropertyValue
    value: 0.396
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.879
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.439
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.622
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.61
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dvě Slůvka
type: MusicRecording
duration: PT2M11S
duration ms: 131000
explicit: false
by artist: Jiří Zmožek
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 5
isrc code: CZA169068998
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42b89d485668b0a6487aa5ec88cfa6f172deedddfbf7b02da01ee1a5a857efee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169068998
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b89d485668b0a6487aa5ec88cfa6f172deedddfbf7b02da01ee1a5a857efee. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169068998 — a six-check JSON result.
  date published: 2026-07-29T13:09:35Z
audio: Dvě Slůvka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.272
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.601
  additional property: Energy
    type: PropertyValue
    value: 0.364
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.755
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.574
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.302
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lásko, Mně Ubývá Sil
type: MusicRecording
duration: PT4M4S
duration ms: 244000
explicit: false
by artist: Pavel Bobek
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA167900199
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T05:35:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4dbc5341b456d9b853f0f1bca470d063ce544aa316c2827db0a4cda7c4e5f91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900199
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dbc5341b456d9b853f0f1bca470d063ce544aa316c2827db0a4cda7c4e5f91. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900199 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Lásko, Mně Ubývá Sil
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.621
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.569
  additional property: Energy
    type: PropertyValue
    value: 0.368
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.477
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.487
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.32
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

To Mám Tak Ráda
type: MusicRecording
duration: PT4M17S
duration ms: 257000
explicit: false
by artist: Marie Rottrova
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA167500233
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T22:04:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfdb1af58623f9b29eb7c997f6fc53c3e226f359dbe915fff287ecb167fcc34f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500233
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb1af58623f9b29eb7c997f6fc53c3e226f359dbe915fff287ecb167fcc34f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500233 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: To Mám Tak Ráda
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.935
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.371
  additional property: Energy
    type: PropertyValue
    value: 0.428
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.777
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.295
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.885
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Jantarový Komnaty
type: MusicRecording
duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Samson a jeho parta
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 0
isrc code: CZA540044811
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:58:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd35b1262f8c533595a3899f72a5bffe32e145c4b67e1b4bcf7bb13ef3ac4b469
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960459
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA540044811
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35b1262f8c533595a3899f72a5bffe32e145c4b67e1b4bcf7bb13ef3ac4b469. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA540044811 — a six-check JSON result.
  date published: 2026-07-31T20:22:46Z
audio: Jantarový Komnaty
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.258
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.66
  additional property: Energy
    type: PropertyValue
    value: 0.472
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.537
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.118
  additional property: Liveness
    type: PropertyValue
    value: 0.284
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.852
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.973
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Až Mě Andělé...
type: MusicRecording
duration: PT4M7S
duration ms: 247000
explicit: false
by artist: Petr Spálený
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 3
isrc code: CZA549829214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:49:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fb314a262861e682a81316b78198e7b5072324caefdcc38d71c4d0f32d999bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA549829214
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb314a262861e682a81316b78198e7b5072324caefdcc38d71c4d0f32d999bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA549829214 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Až Mě Andělé...
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.266
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.601
  additional property: Energy
    type: PropertyValue
    value: 0.454
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.689
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.168
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.988
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Měsíční Řeka
type: MusicRecording
duration: PT3M34S
duration ms: 214000
explicit: false
by artist: Judita Cerovská
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 0
isrc code: CZA166400066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:06:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3394488b29a0dc077808d37ece23c6b73ceebb2e7d206852844de2a1ab1f47b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166400066
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3394488b29a0dc077808d37ece23c6b73ceebb2e7d206852844de2a1ab1f47b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166400066 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Měsíční Řeka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.931
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.22
  additional property: Energy
    type: PropertyValue
    value: 0.327
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.837
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.709
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Krásné Je Žít
type: MusicRecording
duration: PT2M50S
duration ms: 170000
explicit: false
by artist: Milan Chladil
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 0
isrc code: CZA166700015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T10:21:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x913ee78b6d42c7b106091c4c4929716bdf14db5e9835bc4968628485e93c44c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913ee78b6d42c7b106091c4c4929716bdf14db5e9835bc4968628485e93c44c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700015 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Krásné Je Žít
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 154.05
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.184
  additional property: Energy
    type: PropertyValue
    value: 0.383
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.753
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.512
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.998
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sbohem, Lásko
type: MusicRecording
duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Waldemar Matuška
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA166700063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:15:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd48fcb541ca66f203192b6816d1dbb14f8a2a5e6f381f2187160078cb7ff1d1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48fcb541ca66f203192b6816d1dbb14f8a2a5e6f381f2187160078cb7ff1d1d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700063 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sbohem, Lásko
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.472
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.553
  additional property: Energy
    type: PropertyValue
    value: 0.423
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.846
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.337
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.657
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.056
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Poslední Rallye
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Vera Martinova
by artist: Jan Kanyza
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
genre: czech-folk
genre: classic-czech-pop
genre: czech-country
isrc code: CZA161203661
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T04:23:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13028e07f08091c5a767cf2b4d9ecde90bbda2bf919db4645cb89db4ff2897df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161203661
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13028e07f08091c5a767cf2b4d9ecde90bbda2bf919db4645cb89db4ff2897df. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161203661 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Poslední Rallye
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.505
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.546
  additional property: Energy
    type: PropertyValue
    value: 0.748
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.334
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.292
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.587
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.925
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Šípková Růženka
type: MusicRecording
duration: PT3M11S
duration ms: 191000
explicit: false
by artist: Jiří Schelinger
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA167600006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x628e20d6e51d5f7a0f4219eb9c7a07e56082585601a879f0451475d5ab9506c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:06:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628e20d6e51d5f7a0f4219eb9c7a07e56082585601a879f0451475d5ab9506c7. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600006 — a six-check JSON result.
  date published: 2026-07-31T13:06:57Z
audio: Šípková Růženka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.876
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
    value: 0.491
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.447
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.349
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.575
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tichá Píseň
type: MusicRecording
duration: PT4M20S
duration ms: 260000
explicit: false
by artist: Iveta Bartošová
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA168700616
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:49:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6066c3d8b87c3c0a654d99ee00ee555881533715eb860623565fc0162a4d8443
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700616
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6066c3d8b87c3c0a654d99ee00ee555881533715eb860623565fc0162a4d8443. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700616 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Tichá Píseň
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.776
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.237
  additional property: Energy
    type: PropertyValue
    value: 0.373
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.428
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.127
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.799
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Líto, Je Mi Líto
type: MusicRecording
duration: PT4M11S
duration ms: 251000
explicit: false
by artist: Hana Zagorová
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 1
isrc code: CZA168000013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T16:32:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8dcd40dba639df3062bc09f2dc48ea338580fa00516158e458e88a91b3ade97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000013
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dcd40dba639df3062bc09f2dc48ea338580fa00516158e458e88a91b3ade97. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000013 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Líto, Je Mi Líto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.057
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.453
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.471
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.327
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.295
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Žila Som Správne (My Way) - Live
type: MusicRecording
duration: PT4M6S
duration ms: 246000
explicit: false
by artist: Hana Hegerova
in album: Písničky Plné Vzpomínek
  type: MusicAlbum
  date published: 2016-10-14
popularity: 6
isrc code: CZA169100058
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T02:29:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc55dd0b0270a1e890fecd2c8d35eba448e9f4d3b396bba71423d80a63fad435
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169100058
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc55dd0b0270a1e890fecd2c8d35eba448e9f4d3b396bba71423d80a63fad435. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169100058 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Žila Som Správne (My Way) - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.38
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.456
  additional property: Energy
    type: PropertyValue
    value: 0.214
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.878
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.215
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.859
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nejde Zapomenout
type: MusicAlbum
date published: 2004-01-03
track: Nejde Zapomenout
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254440
  explicit: false
  by artist: Karel Zich
  by artist: skupina Flop
  by artist: Jitka Zelenková
  in album: Nejde Zapomenout
    type: MusicAlbum
    date published: 2004-01-03
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA659801899
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:42:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x023d554601c3ce32d22f5cfc5bd1eac7f819da29dc9f29c4fd7a4b72dd2d31ed
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801899
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023d554601c3ce32d22f5cfc5bd1eac7f819da29dc9f29c4fd7a4b72dd2d31ed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801899 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Nejde Zapomenout
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.346
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.49
    additional property: Energy
      type: PropertyValue
      value: 0.827
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.023
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.128
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.48
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.1
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Za To Může Rock'N'Roll
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148906
  explicit: false
  by artist: Karel Zich
  by artist: skupina Flop
  in album: Nejde Zapomenout
    type: MusicAlbum
    date published: 2004-01-03
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA659201963
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T07:28:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2ff992fd71681abaef7ae72774265a6c7c8132013c5860527e423035c92050d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201963
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ff992fd71681abaef7ae72774265a6c7c8132013c5860527e423035c92050d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201963 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Za To Může Rock'N'Roll
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 171.977
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.324
    additional property: Energy
      type: PropertyValue
      value: 0.904
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0.101
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.264
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.567
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.077
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Léto Jak Má Být
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185693
  explicit: false
  by artist: Karel Zich
  by artist: Taneční orchestr ČR
  in album: Nejde Zapomenout
    type: MusicAlbum
    date published: 2004-01-03
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA659801964
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:56:51+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Léto Jak Má Být
track: Bowery Street
track: Zánovní Vůz
track: Nejdou, Hodinky Nejdou
track: We've Got a Song
track: Svět Se Hroutí Sám
track: Paráda, Pt. 2
track: Mám Fotbal Rád
track: What Do You Know
track: Pstruh
track: Zkrátka A Dobře
track: Luxemburg Nám Hrál
track: Heartbreak Hotel
track: Good Luck Charm
track: Dým, Jen Dým
track: It's Now or Never
track: Money Honey
track: I Need Your Love Tonight
track: Can't Help Falling in Love
track: Ready Teddy
track: One Night
track: King Creole

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x082e7456719a9be865049111b8b2a35f6d97e3788be5811afb14a263279830fb

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801964

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082e7456719a9be865049111b8b2a35f6d97e3788be5811afb14a263279830fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801964 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Léto Jak Má Být
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 134.143
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.458
additional property: Energy
  type: PropertyValue
  value: 0.779
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.351
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.147
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.615
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.083
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Bowery Street
type: MusicRecording
duration: PT4M31S
duration ms: 271760
explicit: false
by artist: Karel Zich
by artist: skupina Flop
by artist: Pavel Bobek
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659801680
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:43:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x710c79002e376eaa3bd52e9274cfa39046c93927e25f85603d87fcd747c85c3f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801680
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710c79002e376eaa3bd52e9274cfa39046c93927e25f85603d87fcd747c85c3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801680 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bowery Street
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.216
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.843
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.298
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.567
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.619
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zánovní Vůz
type: MusicRecording
duration: PT2M27S
duration ms: 147120
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659701965
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:07:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86009a1579891634f3731229da640dbfba86d7f5d3338239477e55af836c8e28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659701965
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86009a1579891634f3731229da640dbfba86d7f5d3338239477e55af836c8e28. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659701965 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Zánovní Vůz
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.295
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.419
  additional property: Energy
    type: PropertyValue
    value: 0.823
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.036
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.039
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.723
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.179
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nejdou, Hodinky Nejdou
type: MusicRecording
duration: PT3M6S
duration ms: 186520
explicit: false
by artist: Karel Zich
by artist: Orchestr Karla Vágnera
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659701966
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:42:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71afa3ff513ef537b9c61bb77b68aa8a3238775fab110fa988c55de729ad5ef5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659701966
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71afa3ff513ef537b9c61bb77b68aa8a3238775fab110fa988c55de729ad5ef5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659701966 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Nejdou, Hodinky Nejdou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.946
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.768
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.057
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.167
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.782
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.57
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

We've Got a Song
type: MusicRecording
duration: PT3M19S
duration ms: 199426
explicit: false
by artist: Karel Zich
by artist: skupina Flop
by artist: Freddie Steady
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659001967
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:42:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd05bbd4494f340fd6efc4b98c898b6b13aa97a9bb6e684ec73260437bffb7d89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960193
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960193
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659001967
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:05:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05bbd4494f340fd6efc4b98c898b6b13aa97a9bb6e684ec73260437bffb7d89. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659001967 — a six-check JSON result.
  date published: 2026-07-30T02:05:19Z
audio: We've Got a Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.81
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.566
  additional property: Energy
    type: PropertyValue
    value: 0.862
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.009
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.32
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.762
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.17
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Svět Se Hroutí Sám
type: MusicRecording
duration: PT3M54S
duration ms: 234693
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659501994
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:15:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3d6fc1cb25ab03ca0272b5c347598968994cc3b54d99dc04d2d9ebcbdc1c408
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957067
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957067
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659501994
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:54:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d6fc1cb25ab03ca0272b5c347598968994cc3b54d99dc04d2d9ebcbdc1c408. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659501994 — a six-check JSON result.
  date published: 2026-07-07T16:54:37Z
audio: Svět Se Hroutí Sám
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.445
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.629
  additional property: Energy
    type: PropertyValue
    value: 0.75
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.006
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.066
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.568
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.097
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Paráda, Pt. 2
type: MusicRecording
duration: PT3M47S
duration ms: 227200
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201991
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:04:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7c627695aeacf9bb1c8c1aab393e4b3f07d5735a68c93943a0622ae87cdf00e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201991
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c627695aeacf9bb1c8c1aab393e4b3f07d5735a68c93943a0622ae87cdf00e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201991 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Paráda, Pt. 2
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.613
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.643
  additional property: Energy
    type: PropertyValue
    value: 0.857
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.103
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.306
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.785
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.75
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mám Fotbal Rád
type: MusicRecording
duration: PT3M16S
duration ms: 196546
explicit: false
by artist: Karel Zich
by artist: Orchestr Karla Vágnera
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659801995
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T11:01:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d500bbb6c958a38c4fa9359fd408cf510cb1cc02d67568746cbc5f808f587dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801995
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d500bbb6c958a38c4fa9359fd408cf510cb1cc02d67568746cbc5f808f587dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659801995 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Mám Fotbal Rád
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.25
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.559
  additional property: Energy
    type: PropertyValue
    value: 0.656
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.12
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.571
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.872
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

What Do You Know
type: MusicRecording
duration: PT3M39S
duration ms: 219920
explicit: false
by artist: Karel Zich
by artist: skupina Flop
by artist: Freddie Steady
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659001968
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T17:58:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5ebb95ef0b62100ebe075e4774dd5ba1bbb141ca957ff07dc3e21992551e022
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659001968
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ebb95ef0b62100ebe075e4774dd5ba1bbb141ca957ff07dc3e21992551e022. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659001968 — a six-check JSON result.
  date published: 2026-07-29T21:09:47Z
audio: What Do You Know
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.37
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.601
  additional property: Energy
    type: PropertyValue
    value: 0.925
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.043
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.373
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.615
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.612
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pstruh
type: MusicRecording
duration: PT2M5S
duration ms: 125826
explicit: false
by artist: Karel Zich
by artist: Orchestr Karla Vágnera
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA650301590
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T14:00:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c37fc3097c7f96480943c9bbd6dd02d25ba0a3d94191c71a34c56555ecc505a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA650301590
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c37fc3097c7f96480943c9bbd6dd02d25ba0a3d94191c71a34c56555ecc505a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA650301590 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Pstruh
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.757
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.536
  additional property: Energy
    type: PropertyValue
    value: 0.427
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.746
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.821
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zkrátka A Dobře
type: MusicRecording
duration: PT3M15S
duration ms: 195080
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201996
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T18:40:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff5228abc7293f221948a4b2a5c903abb0bf8e8b707ff77bdc3fcdbeb0ef0c6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201996
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5228abc7293f221948a4b2a5c903abb0bf8e8b707ff77bdc3fcdbeb0ef0c6c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201996 — a six-check JSON result.
  date published: 2026-07-29T19:35:34Z
audio: Zkrátka A Dobře
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.347
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.477
  additional property: Energy
    type: PropertyValue
    value: 0.881
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.342
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.273
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.86
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.717
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Luxemburg Nám Hrál
type: MusicRecording
duration: PT3M47S
duration ms: 227493
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201992
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:08:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16078557f7d7c1aca37406a1ec0e1ad0d118ad56ef46e5b63c44479e05183fcd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201992
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16078557f7d7c1aca37406a1ec0e1ad0d118ad56ef46e5b63c44479e05183fcd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201992 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Luxemburg Nám Hrál
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.46
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.739
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.105
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.198
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.544
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.159
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Heartbreak Hotel
type: MusicRecording
duration: PT2M14S
duration ms: 134920
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201969
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:15:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41c117a79770c9f9f4bd30f0b407122c1f3a22aeef02b569e31874018a244539
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201969
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c117a79770c9f9f4bd30f0b407122c1f3a22aeef02b569e31874018a244539. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201969 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Heartbreak Hotel
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.619
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.562
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.614
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.66
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.955
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Good Luck Charm
type: MusicRecording
duration: PT2M36S
duration ms: 156026
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201970
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:33:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1809d81aad7cf585e737480434e941be5fa65788a4f29ed94442b58bb989d0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201970
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1809d81aad7cf585e737480434e941be5fa65788a4f29ed94442b58bb989d0d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201970 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Good Luck Charm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.941
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
    value: 0.66
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.6
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.316
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.864
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.033
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dým, Jen Dým
type: MusicRecording
duration: PT2M34S
duration ms: 154306
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201993
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:06:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa44e189aced21a44442fc849e897fc45baacf809b399ff0119264ae61059f4d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960199
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960199
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201993
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:30:29Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44e189aced21a44442fc849e897fc45baacf809b399ff0119264ae61059f4d1. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201993 — a six-check JSON result.
  date published: 2026-07-30T02:30:29Z
audio: Dým, Jen Dým
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.026
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.577
  additional property: Energy
    type: PropertyValue
    value: 0.845
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.136
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.91
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.171
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

It's Now or Never
type: MusicRecording
duration: PT3M5S
duration ms: 185840
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201971
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:58:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cec3e91826af3a01ffb0e215d8ef90d92c4b058c11ed6a38256c34ab75a75a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201971
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cec3e91826af3a01ffb0e215d8ef90d92c4b058c11ed6a38256c34ab75a75a9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201971 — a six-check JSON result.
  date published: 2026-07-30T03:35:13Z
audio: It's Now or Never
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.935
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.5
  additional property: Energy
    type: PropertyValue
    value: 0.628
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.605
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.67
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.054
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Money Honey
type: MusicRecording
duration: PT2M40S
duration ms: 160840
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201972
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:32:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9dbd4d25d17f237026194e56cc3a43dccd0413ff21b7921b8ee13e4fb59dd9b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960181
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960181
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201972
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:53:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbd4d25d17f237026194e56cc3a43dccd0413ff21b7921b8ee13e4fb59dd9b7. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201972 — a six-check JSON result.
  date published: 2026-07-30T00:53:20Z
audio: Money Honey
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.367
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.516
  additional property: Energy
    type: PropertyValue
    value: 0.82
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.264
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.688
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.206
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

I Need Your Love Tonight
type: MusicRecording
duration: PT2M6S
duration ms: 126200
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201986
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:37:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6130ecafcf4b1ea31d58814f7c5b7699f0700ce2cac217741c4540b602c7bdba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201986
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6130ecafcf4b1ea31d58814f7c5b7699f0700ce2cac217741c4540b602c7bdba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201986 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: I Need Your Love Tonight
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.199
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.939
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.546
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.962
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.772
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Can't Help Falling in Love
type: MusicRecording
duration: PT2M44S
duration ms: 164693
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201987
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T14:16:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96394db6d59646d14707583d17a37dd28fd3496e9222098302a5b5b33bf9f809
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201987
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96394db6d59646d14707583d17a37dd28fd3496e9222098302a5b5b33bf9f809. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201987 — a six-check JSON result.
  date published: 2026-07-29T14:28:24Z
audio: Can't Help Falling in Love
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.384
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.577
  additional property: Energy
    type: PropertyValue
    value: 0.637
  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.752
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.322
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.706
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ready Teddy
type: MusicRecording
duration: PT1M57S
duration ms: 117720
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201988
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T23:55:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf400a2418afb050ad2a69cfc18ac2a8f02dae8635085cc32c8f54fdae98b6548
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960173
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960173
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201988
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:11:40Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf400a2418afb050ad2a69cfc18ac2a8f02dae8635085cc32c8f54fdae98b6548. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201988 — a six-check JSON result.
  date published: 2026-07-30T00:11:40Z
audio: Ready Teddy
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 188.676
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.84
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.159
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.343
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.685
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.947
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

One Night
type: MusicRecording
duration: PT2M38S
duration ms: 158000
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201989
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:23:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf41cd2542f0f5d58ad36a7752d0c7ccfc525bed0383ba77e02e3552755d6302c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201989
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41cd2542f0f5d58ad36a7752d0c7ccfc525bed0383ba77e02e3552755d6302c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201989 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: One Night
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.526
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.532
  additional property: Energy
    type: PropertyValue
    value: 0.648
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.2
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.172
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.696
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.153
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

King Creole
type: MusicRecording
duration: PT2M7S
duration ms: 127333
explicit: false
by artist: Karel Zich
by artist: skupina Flop
in album: Nejde Zapomenout
  type: MusicAlbum
  date published: 2004-01-03
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA659201990
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:43:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ca9143b1b34019dae9bf4b48c1b528f571a290e39c3e80302e57138f1fc1915
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca9143b1b34019dae9bf4b48c1b528f571a290e39c3e80302e57138f1fc1915. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA659201990 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: King Creole
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.62
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.489
  additional property: Energy
    type: PropertyValue
    value: 0.765
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.338
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.88
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.012
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Karel Zich 1969-1987
type: MusicAlbum
date published: 1994-01-01
track: Alenka V Říši Divů
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202106
  explicit: false
  by artist: Karel Zich
  in album: Karel Zich 1969-1987
    type: MusicAlbum
    date published: 1994-01-01
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA168100131
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T11:34:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2e9d829100fa91ff1b22e63d04228be01903c6f7c399de239280047d9ff6a38c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100131
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d829100fa91ff1b22e63d04228be01903c6f7c399de239280047d9ff6a38c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100131 — a six-check JSON result.
    date published: 2026-07-06T06:56:49Z
  audio: Alenka V Říši Divů
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.614
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.675
    additional property: Energy
      type: PropertyValue
      value: 0.544
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.499
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.248
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.8
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.658
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Máš Chuť Majoránky
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192933
  explicit: false
  by artist: Karel Zich
  in album: Karel Zich 1969-1987
    type: MusicAlbum
    date published: 1994-01-01
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA168100002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T14:36:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7d8a6bbd4fca76b3fea2cf78b646a4d5d004a40c2d1ca2e847d0c5346f1093d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8a6bbd4fca76b3fea2cf78b646a4d5d004a40c2d1ca2e847d0c5346f1093d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100002 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Máš Chuť Majoránky
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.419
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.478
    additional property: Energy
      type: PropertyValue
      value: 0.235
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.687
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.36
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.572
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ptám Se Vás, Lidé
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183960
  explicit: false
  by artist: Karel Zich
  in album: Karel Zich 1969-1987
    type: MusicAlbum
    date published: 1994-01-01
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA167300195
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:31:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x59af849356f8b6c5b945d1d8aaf501345284620b086e14d84ad4c9dabae3ca4f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ptám Se Vás, Lidé
track: To Se Stává
track: Kdybych Byl Malířem
track: Doney Gal
track: K Mikrofonu Čelem
track: Mosty
track: Kola Pop-Music Se Točí Dál
track: Léto Jak Má Být
track: Paráda
track: Měla Na Očích Brýle
track: Podnik Ztrátový
track: Chtěl Bych Umět Napsat Baladu
track: Není Všechno Paráda
track: Sám Se Svou Kytarou
track: Já Ti Zpívám

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300195

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59af849356f8b6c5b945d1d8aaf501345284620b086e14d84ad4c9dabae3ca4f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300195 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Ptám Se Vás, Lidé
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 110.562
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.586
additional property: Energy
  type: PropertyValue
  value: 0.683
additional property: Speechiness
  type: PropertyValue
  value: 0.066
additional property: Acousticness
  type: PropertyValue
  value: 0.043
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.085
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.884
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.911
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

To Se Stává
type: MusicRecording
duration: PT2M45S
duration ms: 165306
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA167300198
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:06:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5919efcc8ccff024fdf226ee6f63be521f69d99f693cce82877cd06bf1776d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300198
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5919efcc8ccff024fdf226ee6f63be521f69d99f693cce82877cd06bf1776d1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300198 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: To Se Stává
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.774
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.446
  additional property: Energy
    type: PropertyValue
    value: 0.683
  additional property: Speechiness
    type: PropertyValue
    value: 0.097
  additional property: Acousticness
    type: PropertyValue
    value: 0.168
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.012
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.863
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.743
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kdybych Byl Malířem
type: MusicRecording
duration: PT3M42S
duration ms: 222426
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA167600210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T18:20:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3534452a158ae553901d4964f2aad05b52d0d471ccc3520c3fdf8f17816436d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3534452a158ae553901d4964f2aad05b52d0d471ccc3520c3fdf8f17816436d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600210 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Kdybych Byl Malířem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.596
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.381
  additional property: Energy
    type: PropertyValue
    value: 0.313
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.256
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.029
  additional property: Liveness
    type: PropertyValue
    value: 0.193
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.361
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.52
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Doney Gal
type: MusicRecording
duration: PT3M34S
duration ms: 214733
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA167000495
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:20:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13949c69b9dc8456e44b06a6ce6ea9b20db7861c90ae503acf39bc06ff2ff42f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000495
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13949c69b9dc8456e44b06a6ce6ea9b20db7861c90ae503acf39bc06ff2ff42f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000495 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: Doney Gal
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.312
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.116
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.875
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.994
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

K Mikrofonu Čelem
type: MusicRecording
duration: PT3M36S
duration ms: 216173
explicit: false
by artist: Karel Zich
by artist: Pavel Bobek
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168600287
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:19:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64b7f45b06651a7ea2a93017d9860575c7c4737c2a51ee5908915ecfe5e79d2f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600287
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b7f45b06651a7ea2a93017d9860575c7c4737c2a51ee5908915ecfe5e79d2f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600287 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: K Mikrofonu Čelem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.726
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.815
  additional property: Energy
    type: PropertyValue
    value: 0.693
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.42
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.845
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mosty
type: MusicRecording
duration: PT3M37S
duration ms: 217760
explicit: false
by artist: Karel Zich
by artist: Lenka Filipova
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168000207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:00:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8844c446873f65ec3ce5faef9c30454bf101cebd6eec66a958ab65d80a5b699c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8844c446873f65ec3ce5faef9c30454bf101cebd6eec66a958ab65d80a5b699c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168000207 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mosty
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.272
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.635
  additional property: Energy
    type: PropertyValue
    value: 0.469
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.52
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.707
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.993
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kola Pop-Music Se Točí Dál
type: MusicRecording
duration: PT2M28S
duration ms: 148200
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168500264
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa355ba3c4cfae3e18282455c11243ef1d40a1f894aa8c6bc975921f589b3459d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa355ba3c4cfae3e18282455c11243ef1d40a1f894aa8c6bc975921f589b3459d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500264 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: Kola Pop-Music Se Točí Dál
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.375
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.66
  additional property: Energy
    type: PropertyValue
    value: 0.547
  additional property: Speechiness
    type: PropertyValue
    value: 0.191
  additional property: Acousticness
    type: PropertyValue
    value: 0.024
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.774
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.4
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Léto Jak Má Být
type: MusicRecording
duration: PT3M5S
duration ms: 185000
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168600279
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T04:52:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf6f07ec55d87458039e9b9b6c87fe949621d81b9a7d1d705a193b9d533cdd4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600279
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f07ec55d87458039e9b9b6c87fe949621d81b9a7d1d705a193b9d533cdd4c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600279 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Léto Jak Má Být
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.841
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.571
  additional property: Energy
    type: PropertyValue
    value: 0.44
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.511
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.804
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.722
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Paráda
type: MusicRecording
duration: PT3M25S
duration ms: 205733
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168300219
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T06:05:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7a04b571584716ec70eba013a4c685118bb8ff7bace9287cd4f8afa02d70003
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300219
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a04b571584716ec70eba013a4c685118bb8ff7bace9287cd4f8afa02d70003. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300219 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Paráda
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.225
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.634
  additional property: Energy
    type: PropertyValue
    value: 0.552
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.215
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.283
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.963
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.052
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Měla Na Očích Brýle
type: MusicRecording
duration: PT3M23S
duration ms: 203373
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA167800178
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:15:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d4127654a83cae8274c316b1ef8f6aa139094495c0d648861c971a6111f4080
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800178
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4127654a83cae8274c316b1ef8f6aa139094495c0d648861c971a6111f4080. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800178 — a six-check JSON result.
  date published: 2026-06-13T12:53:06Z
audio: Měla Na Očích Brýle
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.063
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.727
  additional property: Energy
    type: PropertyValue
    value: 0.488
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.029
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.927
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.855
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Podnik Ztrátový
type: MusicRecording
duration: PT2M55S
duration ms: 175000
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168500272
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T22:42:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x941c67fce6cc287b7a490990120b9d87de26c2e3abf029dc3c2273fbde5ac969
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960164
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960164
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500272
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:23:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941c67fce6cc287b7a490990120b9d87de26c2e3abf029dc3c2273fbde5ac969. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168500272 — a six-check JSON result.
  date published: 2026-07-29T23:23:05Z
audio: Podnik Ztrátový
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.606
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.559
  additional property: Energy
    type: PropertyValue
    value: 0.233
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.864
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.359
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.24
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chtěl Bych Umět Napsat Baladu
type: MusicRecording
duration: PT6M5S
duration ms: 365826
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168100134
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5148806aa756a9cbc66149c7fe94db0ba6f03dcfc5bf37b651464dcb75657cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960509
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960509
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100134
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T04:30:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5148806aa756a9cbc66149c7fe94db0ba6f03dcfc5bf37b651464dcb75657cd. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168100134 — a six-check JSON result.
  date published: 2026-08-01T04:30:37Z
audio: Chtěl Bych Umět Napsat Baladu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.668
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.316
  additional property: Energy
    type: PropertyValue
    value: 0.509
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.126
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.472
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.679
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.858
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Není Všechno Paráda
type: MusicRecording
duration: PT2M28S
duration ms: 148040
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168400297
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbba566b0ca76e1964a2b67069d3d7f8389425f178c8ea02c6682a62666bd4b23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168400297
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba566b0ca76e1964a2b67069d3d7f8389425f178c8ea02c6682a62666bd4b23. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168400297 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Není Všechno Paráda
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.707
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.566
  additional property: Energy
    type: PropertyValue
    value: 0.537
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.044
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.934
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.918
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sám Se Svou Kytarou
type: MusicRecording
duration: PT2M57S
duration ms: 177293
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA167600212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T20:13:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5547600c8ec609b4559076f7a23c15141541448a48ba5e420b757f20ea415ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5547600c8ec609b4559076f7a23c15141541448a48ba5e420b757f20ea415ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600212 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Sám Se Svou Kytarou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.626
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.634
  additional property: Energy
    type: PropertyValue
    value: 0.384
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.623
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.552
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.439
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Já Ti Zpívám
type: MusicRecording
duration: PT3M19S
duration ms: 199373
explicit: false
by artist: Karel Zich
in album: Karel Zich 1969-1987
  type: MusicAlbum
  date published: 1994-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA169400456
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T18:49:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe32fbb4952f7ca0158129713878b123e12e7133b3cb7b9a7aba63eb4c2e393c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169400456
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32fbb4952f7ca0158129713878b123e12e7133b3cb7b9a7aba63eb4c2e393c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169400456 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Já Ti Zpívám
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.636
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.476
  additional property: Energy
    type: PropertyValue
    value: 0.235
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.653
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.464
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.421
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tři Jsou Někdy Víc
type: MusicAlbum
date published: 1986
track: Tři Jsou Někdy Víc
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223666
  explicit: false
  by artist: Karel Zich
  in album: Tři Jsou Někdy Víc
    type: MusicAlbum
    date published: 1986
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA168600280
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:54:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x633504e9c4bb42f551c49fdfd7393467252e8bfcb175453a0cf2624bc3656bb8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600280
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633504e9c4bb42f551c49fdfd7393467252e8bfcb175453a0cf2624bc3656bb8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600280 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Tři Jsou Někdy Víc
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.984
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.86
    additional property: Energy
      type: PropertyValue
      value: 0.618
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.294
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.195
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.934
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.053
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Napíšu Pár Taktů
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228546
  explicit: false
  by artist: Karel Zich
  in album: Tři Jsou Někdy Víc
    type: MusicAlbum
    date published: 1986
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA168600281
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x36b06ef0d5c3a3a02c149c1037ccf26a22db6a14797ba268ba4aa3bb292059a9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960494
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600281
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T01:44:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b06ef0d5c3a3a02c149c1037ccf26a22db6a14797ba268ba4aa3bb292059a9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600281 — a six-check JSON result.
    date published: 2026-08-01T01:44:32Z
  audio: Napíšu Pár Taktů
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.788
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.378
    additional property: Energy
      type: PropertyValue
      value: 0.645
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.432
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.166
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.512
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.363
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nejde Zapomenout
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256399
  explicit: false
  by artist: Karel Zich
  by artist: Jitka Zelenková
  in album: Tři Jsou Někdy Víc
    type: MusicAlbum
    date published: 1986
  genre: czech-folk
  genre: classic-czech-pop
  genre: slovak-pop
  isrc code: CZA168600286
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T18:41:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9ad680beb9319708c3baeefcf60976d9ea037054badba3a2c077e7466b0e3415
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Nejde Zapomenout
track: K Mikrofonu Čelem
track: Léto Jak Má Být

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600286

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad680beb9319708c3baeefcf60976d9ea037054badba3a2c077e7466b0e3415. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600286 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Nejde Zapomenout
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.687
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.706
additional property: Energy
  type: PropertyValue
  value: 0.635
additional property: Speechiness
  type: PropertyValue
  value: 0.028
additional property: Acousticness
  type: PropertyValue
  value: 0.16
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.086
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.47
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.231
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

K Mikrofonu Čelem
type: MusicRecording
duration: PT3M36S
duration ms: 216173
explicit: false
by artist: Karel Zich
by artist: Pavel Bobek
in album: Tři Jsou Někdy Víc
  type: MusicAlbum
  date published: 1986
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168600287
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64b7f45b06651a7ea2a93017d9860575c7c4737c2a51ee5908915ecfe5e79d2f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600287
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b7f45b06651a7ea2a93017d9860575c7c4737c2a51ee5908915ecfe5e79d2f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600287 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: K Mikrofonu Čelem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.726
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.815
  additional property: Energy
    type: PropertyValue
    value: 0.693
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.42
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.845
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Léto Jak Má Být
type: MusicRecording
duration: PT3M4S
duration ms: 184546
explicit: false
by artist: Karel Zich
in album: Tři Jsou Někdy Víc
  type: MusicAlbum
  date published: 1986
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA168600279
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T04:52:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf6f07ec55d87458039e9b9b6c87fe949621d81b9a7d1d705a193b9d533cdd4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600279
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f07ec55d87458039e9b9b6c87fe949621d81b9a7d1d705a193b9d533cdd4c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600279 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Léto Jak Má Být
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.056
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.54
  additional property: Energy
    type: PropertyValue
    value: 0.725
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.487
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.72
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.106
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
type: MusicAlbum
date published: 2015-05-23
track: Prý Já To Byl
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174440
  explicit: false
  by artist: Ladislav Vodička
  in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
    type: MusicAlbum
    date published: 2015-05-23
  popularity: 1
  genre: classic-czech-pop
  genre: czech-country
  isrc code: CZA161540407
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x048b9a3d34b36c0387f4cfdeba5b7b421e6b65f8990742b5a9072b35105a60e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960348
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960348
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540407
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048b9a3d34b36c0387f4cfdeba5b7b421e6b65f8990742b5a9072b35105a60e2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540407 — a six-check JSON result.
    date published: 2026-07-31T05:17:02Z
  audio: Prý Já To Byl
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.259
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.596
    additional property: Energy
      type: PropertyValue
      value: 0.602
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.359
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.057
    additional property: Liveness
      type: PropertyValue
      value: 0.139
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.773
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.217
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Aljaška
  type: MusicRecording
  duration: PT2M10S
  duration ms: 130333
  explicit: false
  by artist: Mustangové
  in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
    type: MusicAlbum
    date published: 2015-05-23
  popularity: 7
  isrc code: CZA167000499
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T12:46:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4655dcce3700bbcb9a06be334a247224b85947056de336dd9b8982830537b047
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960108
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960108
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000499
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T13:09:35Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4655dcce3700bbcb9a06be334a247224b85947056de336dd9b8982830537b047. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000499 — a six-check JSON result.
    date published: 2026-07-29T13:09:35Z
  audio: Aljaška
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.637
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.51
    additional property: Energy
      type: PropertyValue
      value: 0.745
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.231
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.294
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.965
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.322
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Buráky
  type: MusicRecording
  duration: PT2M12S
  duration ms: 132306
  explicit: false
  by artist: Mustangové
  in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
    type: MusicAlbum
    date published: 2015-05-23
  popularity: 3
  isrc code: CZA167000733
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:51:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x39db16a27feaff7ee823ea912dd05b990615ebe9fb04ace286093558fea3ec28
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Buráky
track: Zrádný Banjo
track: Můj Vlak Vysněnej
track: Bídnej Chlap
track: Dívka Z Hor
track: Spousta Divnejch Přání
track: Strýc Teddy
track: Frankie Dlouhán
track: Znám Krásnou Zem
track: Líná Žena
track: Neplač Malá
track: Tak Či Tak
track: Nádherná Jízda
track: Den Jde Spát
track: Prázdný Břeh
track: Lenko
track: První Vlak
track: Má Ráda Máj
track: Čím Větší Bloud, Tím Tvrdší Pád
track: Jitro Vchází Oknem
track: Country Bál

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000733

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39db16a27feaff7ee823ea912dd05b990615ebe9fb04ace286093558fea3ec28. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000733 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Buráky
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 131.921
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.685
additional property: Energy
  type: PropertyValue
  value: 0.526
additional property: Speechiness
  type: PropertyValue
  value: 0.368
additional property: Acousticness
  type: PropertyValue
  value: 0.371
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.044
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.914
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.582
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Zrádný Banjo
type: MusicRecording
duration: PT2M31S
duration ms: 151440
explicit: false
by artist: KTO
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA167000373
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T00:59:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03b6273837706140aaef7ad8b03ebf203e99cc694eb95d67ce703d34e2ad84af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000373
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6273837706140aaef7ad8b03ebf203e99cc694eb95d67ce703d34e2ad84af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000373 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Zrádný Banjo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.83
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.536
  additional property: Energy
    type: PropertyValue
    value: 0.708
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.412
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.977
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.794
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Můj Vlak Vysněnej
type: MusicRecording
duration: PT3M47S
duration ms: 227226
explicit: false
by artist: Country Beat Jiřího Brabce
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 2
isrc code: CZA161301751
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T11:00:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ef4bb611ca6971c85cade5054172bb846bada4923fdb9efd7bb26c77ebb1b47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960250
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960250
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301751
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T11:13:28Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef4bb611ca6971c85cade5054172bb846bada4923fdb9efd7bb26c77ebb1b47. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301751 — a six-check JSON result.
  date published: 2026-07-30T11:13:28Z
audio: Můj Vlak Vysněnej
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.09
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.688
  additional property: Energy
    type: PropertyValue
    value: 0.754
  additional property: Speechiness
    type: PropertyValue
    value: 0.172
  additional property: Acousticness
    type: PropertyValue
    value: 0.036
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.594
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.443
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bídnej Chlap
type: MusicRecording
duration: PT2M40S
duration ms: 160826
explicit: false
by artist: Karel Kahovec
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 2
genre: big-beat
isrc code: CZA161301748
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:05:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64f265bdc3853c43171053880753ce1c589cc71528a9930b1c4f92e672e0ded7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301748
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f265bdc3853c43171053880753ce1c589cc71528a9930b1c4f92e672e0ded7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301748 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Bídnej Chlap
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.491
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.537
  additional property: Energy
    type: PropertyValue
    value: 0.693
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.49
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.195
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.931
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.906
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dívka Z Hor
type: MusicRecording
duration: PT5M35S
duration ms: 335666
explicit: false
by artist: Ladislav Vodička
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 0
genre: classic-czech-pop
genre: czech-country
isrc code: CZA161301670
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1561caaf05d420228f2a219bd44c9dab228ff970a63efb461f4d69dfe65ab06
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301670
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1561caaf05d420228f2a219bd44c9dab228ff970a63efb461f4d69dfe65ab06. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161301670 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Dívka Z Hor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.934
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.537
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.548
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.721
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.224
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Spousta Divnejch Přání
type: MusicRecording
duration: PT2M7S
duration ms: 127328
explicit: false
by artist: Minnesengři
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA161302448
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T22:32:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a71ea237c30e96d3e99bdc07cfb125ab7ee30aab2e27fa0a3b6b8cfc533a1be
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161302448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a71ea237c30e96d3e99bdc07cfb125ab7ee30aab2e27fa0a3b6b8cfc533a1be. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161302448 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Spousta Divnejch Přání
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.071
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.765
  additional property: Energy
    type: PropertyValue
    value: 0.432
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.757
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.328
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.936
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.067
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Strýc Teddy
type: MusicRecording
duration: PT2M21S
duration ms: 141160
explicit: false
by artist: Karel Kahovec
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
genre: big-beat
isrc code: CZA167300647
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:37:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac358bb3cb190a5a412b905035722739825c2a52b690f833257954265a15b968
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300647
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac358bb3cb190a5a412b905035722739825c2a52b690f833257954265a15b968. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167300647 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Strýc Teddy
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.802
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.575
  additional property: Energy
    type: PropertyValue
    value: 0.731
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.056
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.36
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.842
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.013
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Frankie Dlouhán
type: MusicRecording
duration: PT3M16S
duration ms: 196200
explicit: false
by artist: Brontosauri
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 30
isrc code: CZA167500008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T12:01:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27352473488702b6ea276658007c8f5f538700c6d85ef49c3501539cfced0a37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27352473488702b6ea276658007c8f5f538700c6d85ef49c3501539cfced0a37. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500008 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Frankie Dlouhán
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.998
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.597
  additional property: Energy
    type: PropertyValue
    value: 0.552
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.819
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.599
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.502
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Znám Krásnou Zem
type: MusicRecording
duration: PT2M26S
duration ms: 146693
explicit: false
by artist: Zuzana Stirská
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA161540349
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:22:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x143364be505be89355d691cdb48bced36020a7bbae0fba516c5cd2e4bcf89b9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540349
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143364be505be89355d691cdb48bced36020a7bbae0fba516c5cd2e4bcf89b9d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540349 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Znám Krásnou Zem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.648
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.478
  additional property: Energy
    type: PropertyValue
    value: 0.287
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.27
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.076
  additional property: Liveness
    type: PropertyValue
    value: 0.335
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.533
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.687
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Líná Žena
type: MusicRecording
duration: PT1M38S
duration ms: 98533
explicit: false
by artist: Fešáci
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 2
isrc code: CZA167500459
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T10:21:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8a86538ceac4ffe02297227108031b3ea38d005a8132828f8a2039d4e1104b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960247
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500459
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a86538ceac4ffe02297227108031b3ea38d005a8132828f8a2039d4e1104b7. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500459 — a six-check JSON result.
  date published: 2026-07-30T10:42:33Z
audio: Líná Žena
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.3
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.656
  additional property: Energy
    type: PropertyValue
    value: 0.667
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.281
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.923
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.876
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Neplač Malá
type: MusicRecording
duration: PT1M52S
duration ms: 112400
explicit: false
by artist: Rangers
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 2
isrc code: CZA167700438
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:53:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb716ea1549adc768b2c22defdd5ce74a5ff23466fd670d8de7a59f214090afdb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167700438
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb716ea1549adc768b2c22defdd5ce74a5ff23466fd670d8de7a59f214090afdb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167700438 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Neplač Malá
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.44
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.432
  additional property: Energy
    type: PropertyValue
    value: 0.147
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.239
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.302
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.376
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tak Či Tak
type: MusicRecording
duration: PT2M56S
duration ms: 176026
explicit: false
by artist: Rangers
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA167700440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T03:02:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbc0fca9193c35003181a735b5307f65a5b6640666c6a9bafffa21db2f06974c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167700440
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc0fca9193c35003181a735b5307f65a5b6640666c6a9bafffa21db2f06974c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167700440 — a six-check JSON result.
  date published: 2026-08-01T03:13:03Z
audio: Tak Či Tak
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.39
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.62
  additional property: Energy
    type: PropertyValue
    value: 0.569
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.188
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.709
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.961
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.356
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nádherná Jízda
type: MusicRecording
duration: PT2M57S
duration ms: 177713
explicit: false
by artist: Maxmilián Presser
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA161302096
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:59:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf32f1b5972e2eea5bb4cfa457a4116155a2c00d3323b4fdff698dbce5742115c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161302096
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32f1b5972e2eea5bb4cfa457a4116155a2c00d3323b4fdff698dbce5742115c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161302096 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Nádherná Jízda
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.737
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.761
  additional property: Energy
    type: PropertyValue
    value: 0.61
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.228
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.022
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.961
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.762
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Den Jde Spát
type: MusicRecording
duration: PT4M2S
duration ms: 242306
explicit: false
by artist: Waldemar Matuška
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA161540772
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:42:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7132bed242a575ce032cf258612b5d18f64140b3ab48481d31894069cd75eead
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540772
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:23:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7132bed242a575ce032cf258612b5d18f64140b3ab48481d31894069cd75eead. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161540772 — a six-check JSON result.
  date published: 2026-07-31T05:23:41Z
audio: Den Jde Spát
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.571
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.529
  additional property: Energy
    type: PropertyValue
    value: 0.382
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.194
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.477
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.031
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prázdný Břeh
type: MusicRecording
duration: PT2M30S
duration ms: 150880
explicit: false
by artist: Lenka Chmelová
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA168284999
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:18:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9f34cc29c3cac0c092f62a54975631a4b05b93b7e6ece88b1a3d6eaa2caa8ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168284999
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f34cc29c3cac0c092f62a54975631a4b05b93b7e6ece88b1a3d6eaa2caa8ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168284999 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Prázdný Břeh
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.402
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.644
  additional property: Energy
    type: PropertyValue
    value: 0.431
  additional property: Speechiness
    type: PropertyValue
    value: 0.17
  additional property: Acousticness
    type: PropertyValue
    value: 0.28
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.717
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.729
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lenko
type: MusicRecording
duration: PT3M41S
duration ms: 221706
explicit: false
by artist: Petr Spálený
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 3
isrc code: CZA168300548
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:49:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a2038cb1d8bf09d4c1499c0617e592bf9f1bf841d9522d94af71c7e941aaf92
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300548
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2038cb1d8bf09d4c1499c0617e592bf9f1bf841d9522d94af71c7e941aaf92. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300548 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Lenko
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.497
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.614
  additional property: Energy
    type: PropertyValue
    value: 0.286
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.357
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.06
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.562
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.458
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

První Vlak
type: MusicRecording
duration: PT3M28S
duration ms: 208800
explicit: false
by artist: Fešáci
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA168300580
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:05:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x753460d5947a5f9a639df5d23d5838dccdc3f600011bebdb3d56a60476cad1ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300580
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753460d5947a5f9a639df5d23d5838dccdc3f600011bebdb3d56a60476cad1ce. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300580 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: První Vlak
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.321
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.554
  additional property: Energy
    type: PropertyValue
    value: 0.642
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.032
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.786
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.227
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Má Ráda Máj
type: MusicRecording
duration: PT3M43S
duration ms: 223066
explicit: false
by artist: Fešáci
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA168300584
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:54:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb662b86f577a8883f49c949c78e92e3340bf6c37bdabaf29755bba6f533f6805
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300584
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb662b86f577a8883f49c949c78e92e3340bf6c37bdabaf29755bba6f533f6805. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300584 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Má Ráda Máj
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.814
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.49
  additional property: Energy
    type: PropertyValue
    value: 0.543
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.253
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.255
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.559
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.649
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Čím Větší Bloud, Tím Tvrdší Pád
type: MusicRecording
duration: PT3M33S
duration ms: 213933
explicit: false
by artist: Wabi Danek
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 5
genre: folk
isrc code: CZA168600631
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:00:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81f9b52f416a3198fd5308443043c8be2787de3d706817316b221cea981809a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600631
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f9b52f416a3198fd5308443043c8be2787de3d706817316b221cea981809a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168600631 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Čím Větší Bloud, Tím Tvrdší Pád
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.394
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.682
  additional property: Energy
    type: PropertyValue
    value: 0.28
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.825
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.234
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.813
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Jitro Vchází Oknem
type: MusicRecording
duration: PT2M54S
duration ms: 174533
explicit: false
by artist: Tomas Linka
by artist: Helena Marsalkova
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA168710999
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:04:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b1523a6f69212bf613ae9acd8766e82b39a227243b3e8ff6709b7e945c4a3b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168710999
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1523a6f69212bf613ae9acd8766e82b39a227243b3e8ff6709b7e945c4a3b0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168710999 — a six-check JSON result.
  date published: 2026-08-01T03:13:03Z
audio: Jitro Vchází Oknem
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.018
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.656
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.75
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.744
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.65
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Country Bál
type: MusicRecording
duration: PT3M15S
duration ms: 195533
explicit: false
by artist: Fešáci
in album: Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
  type: MusicAlbum
  date published: 2015-05-23
popularity: 1
isrc code: CZA168800601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:03:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f19e8d8da08e1831b1a1b3d9b7106e3fea5d3031a26f3f7dad4d9fc248abb48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168800601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f19e8d8da08e1831b1a1b3d9b7106e3fea5d3031a26f3f7dad4d9fc248abb48. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168800601 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Country Bál
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.6
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.55
  additional property: Energy
    type: PropertyValue
    value: 0.787
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.167
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.709
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.873
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.525
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vsem divkam, co jsem mel kdy rad
type: MusicAlbum
date published: 2014-01-01
track: Vsem divkam, co jsem mel kdy rad
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205240
  explicit: false
  by artist: Pavel Bobek
  by artist: Karel Gott
  in album: Vsem divkam, co jsem mel kdy rad
    type: MusicAlbum
    date published: 2014-01-01
  isrc code: CZA120110001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8915738c7a1591b87ca26881e15d5026bc7755a5a478232f59aff05d1ade5b0e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960138
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120110001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8915738c7a1591b87ca26881e15d5026bc7755a5a478232f59aff05d1ade5b0e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120110001 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
  audio: Vsem divkam, co jsem mel kdy rad
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.102
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.517
    additional property: Energy
      type: PropertyValue
      value: 0.559
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.533
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.224
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.449
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.268
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Vic nehledam
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167026
  explicit: false
  by artist: Pavel Bobek
  in album: Vsem divkam, co jsem mel kdy rad
    type: MusicAlbum
    date published: 2014-01-01
  isrc code: CZUM71000050
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T03:56:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d3bac44e3cde25aa7cb41dca528ec89d187a57fe4e9e3a32c4b1115dad0b3d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71000050
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3bac44e3cde25aa7cb41dca528ec89d187a57fe4e9e3a32c4b1115dad0b3d1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71000050 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Vic nehledam
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.189
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.726
    additional property: Energy
      type: PropertyValue
      value: 0.682
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.199
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.342
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ma divka "N"
  type: MusicRecording
  duration: PT2M11S
  duration ms: 131146
  explicit: false
  by artist: Pavel Bobek
  in album: Vsem divkam, co jsem mel kdy rad
    type: MusicAlbum
    date published: 2014-01-01
  isrc code: CZA120011001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:59:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd56f0041638fc684abd2f4b2b987df6816aa8eff9ea5908f9d17236fc42dfbc2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120011001
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ma divka "N"
track: Kral silnic
track: Lasko, mne ubyva sil
track: Nedelni rano
track: Bowery Street
track: Muj rodny dum
track: Pojd stoupat jak dym
track: Proc nemas me rada
track: Tam, kde lezi Phoenix
track: Dalnicni hlidka
track: Country Boy
track: Bismarck
track: Kobylka
track: Pane muj
track: Odvykam
track: Chvile louceni
track: Oh, Ruby, nechtej mi lasku brat
track: Zmiram laskou
track: Rokenrolu dal jsem vsechny nejlepsi sve dny
track: Houston
track: Ved me dal, cesto ma
track: Pojd dal a zpivej
track: Vis, kdo ti smi z tvych vlasku copy splest ?
track: Hejno padlych andelu
track: Vincent

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56f0041638fc684abd2f4b2b987df6816aa8eff9ea5908f9d17236fc42dfbc2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120011001 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Ma divka "N"
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 116.661
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.55
additional property: Energy
  type: PropertyValue
  value: 0.743
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.026
additional property: Instrumentalness
  type: PropertyValue
  value: 0.002
additional property: Liveness
  type: PropertyValue
  value: 0.161
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.693
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.962
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Kral silnic
type: MusicRecording
duration: PT2M27S
duration ms: 147373
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120209014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T05:26:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe79d43cc1ae9aaccd9aaad078c0c5206b1d07ea914e606f0ee09abba0f45315c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960218
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960218
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120209014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:57:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79d43cc1ae9aaccd9aaad078c0c5206b1d07ea914e606f0ee09abba0f45315c. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120209014 — a six-check JSON result.
  date published: 2026-07-30T06:57:05Z
audio: Kral silnic
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.073
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.686
  additional property: Energy
    type: PropertyValue
    value: 0.519
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.526
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.776
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.818
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lasko, mne ubyva sil
type: MusicRecording
duration: PT3M50S
duration ms: 230280
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120009050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T05:05:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71471827efbdb3e82d30a17f90b3f3d733e06a3e20dc6bc93acc7b29c49fb912
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120009050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71471827efbdb3e82d30a17f90b3f3d733e06a3e20dc6bc93acc7b29c49fb912. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120009050 — a six-check JSON result.
  date published: 2026-07-30T05:15:54Z
audio: Lasko, mne ubyva sil
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.32
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.562
  additional property: Energy
    type: PropertyValue
    value: 0.568
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.036
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.515
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.288
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nedelni rano
type: MusicRecording
duration: PT3M40S
duration ms: 220653
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:03:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9f2d5c0a74011f618f0490f088bc851e34d416eb9d2c681572d976993ea4325
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960185
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f2d5c0a74011f618f0490f088bc851e34d416eb9d2c681572d976993ea4325. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204014 — a six-check JSON result.
  date published: 2026-07-30T01:32:48Z
audio: Nedelni rano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.636
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.656
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.024
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.152
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.607
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.247
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bowery Street
type: MusicRecording
duration: PT4M20S
duration ms: 260959
explicit: false
by artist: Karel Zich
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
genre: czech-folk
genre: classic-czech-pop
genre: slovak-pop
isrc code: CZA129803007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T12:24:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3f642e11664f6fc58853dacb1d004a75021bdc6ba2a539c5c51d3ba7e86167b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960106
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960106
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:41:21Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f642e11664f6fc58853dacb1d004a75021bdc6ba2a539c5c51d3ba7e86167b. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803007 — a six-check JSON result.
  date published: 2026-07-29T12:41:21Z
audio: Bowery Street
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.377
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.478
  additional property: Energy
    type: PropertyValue
    value: 0.668
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.302
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.704
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.622
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.851
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Muj rodny dum
type: MusicRecording
duration: PT4M17S
duration ms: 257813
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T16:33:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf14c10b943b2f82833e41e7831343642291ec25f551012c64c8e441250cfc019
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14c10b943b2f82833e41e7831343642291ec25f551012c64c8e441250cfc019. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204005 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Muj rodny dum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.03
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.573
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.149
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.594
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.918
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pojd stoupat jak dym
type: MusicRecording
duration: PT2M48S
duration ms: 168266
explicit: false
by artist: Pavel Bobek
by artist: Lída Nopová
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120010005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:35:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90d9c5256182d652c346e2727931e6fec5a60ce7db0ca303a39f553506063166
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120010005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d9c5256182d652c346e2727931e6fec5a60ce7db0ca303a39f553506063166. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120010005 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Pojd stoupat jak dym
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.203
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.645
  additional property: Energy
    type: PropertyValue
    value: 0.39
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.059
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.017
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.676
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.642
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Proc nemas me rada
type: MusicRecording
duration: PT2M6S
duration ms: 126093
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120010057
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:06:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4402a5eee3990b68a6d17f08fa672b64c5e071d8ccbc6a32a1192a74d52f22c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960407
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120010057
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:26:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4402a5eee3990b68a6d17f08fa672b64c5e071d8ccbc6a32a1192a74d52f22c3. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120010057 — a six-check JSON result.
  date published: 2026-07-31T13:26:30Z
audio: Proc nemas me rada
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.431
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.565
  additional property: Energy
    type: PropertyValue
    value: 0.917
  additional property: Speechiness
    type: PropertyValue
    value: 0.193
  additional property: Acousticness
    type: PropertyValue
    value: 0.01
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.299
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.777
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.428
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tam, kde lezi Phoenix
type: MusicRecording
duration: PT2M34S
duration ms: 154000
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA129605042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T10:04:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x895fbc30c5f5c8e6d8358c78109811af9b76822a1f9b1203dd060fff1fc98a2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960247
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129605042
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895fbc30c5f5c8e6d8358c78109811af9b76822a1f9b1203dd060fff1fc98a2a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129605042 — a six-check JSON result.
  date published: 2026-07-30T10:42:33Z
audio: Tam, kde lezi Phoenix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.321
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.515
  additional property: Energy
    type: PropertyValue
    value: 0.521
  additional property: Speechiness
    type: PropertyValue
    value: 0.025
  additional property: Acousticness
    type: PropertyValue
    value: 0.397
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.753
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dalnicni hlidka
type: MusicRecording
duration: PT5M25S
duration ms: 325213
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:48:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a723c9558d5659e9e8fa19fb2195928ce56171d399d2121af7ed2b855ef2456
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204009
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a723c9558d5659e9e8fa19fb2195928ce56171d399d2121af7ed2b855ef2456. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204009 — a six-check JSON result.
  date published: 2026-07-08T03:53:27Z
audio: Dalnicni hlidka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.619
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.677
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.321
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.586
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.435
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Country Boy
type: MusicRecording
duration: PT2M32S
duration ms: 152093
explicit: false
by artist: Pavel Bobek
by artist: Lída Nopová
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T22:32:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x44748cbbdaef8eb157db7d1c9bae72ca94b71ee917cd0ed36c5dd0cd508e4bb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204003
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44748cbbdaef8eb157db7d1c9bae72ca94b71ee917cd0ed36c5dd0cd508e4bb5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204003 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Country Boy
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.573
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.727
  additional property: Energy
    type: PropertyValue
    value: 0.722
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.155
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.961
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.149
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bismarck
type: MusicRecording
duration: PT3M5S
duration ms: 185560
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120005001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:54:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffe3e061e7cc88da80ed2ed64f674bf71367028d94eac8832b263a367a2257c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120005001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe3e061e7cc88da80ed2ed64f674bf71367028d94eac8832b263a367a2257c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120005001 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bismarck
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.821
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.628
  additional property: Speechiness
    type: PropertyValue
    value: 0.102
  additional property: Acousticness
    type: PropertyValue
    value: 0.628
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.147
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.95
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.826
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kobylka
type: MusicRecording
duration: PT2M29S
duration ms: 149706
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:40:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4cedfc3b448939ae5d5950f9623b5244c543fa746439a0fa6ae10673764a9bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cedfc3b448939ae5d5950f9623b5244c543fa746439a0fa6ae10673764a9bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204011 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Kobylka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.378
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.532
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.406
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.385
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.139
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pane muj
type: MusicRecording
duration: PT3M23S
duration ms: 203506
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120005041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:34:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17b174fb30b18dc2e2afe3c5dded7032f0cd72ed2b1f3b76c7a11bb657bcaf9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120005041
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b174fb30b18dc2e2afe3c5dded7032f0cd72ed2b1f3b76c7a11bb657bcaf9b. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120005041 — a six-check JSON result.
  date published: 2026-07-31T15:59:18Z
audio: Pane muj
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.845
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.387
  additional property: Energy
    type: PropertyValue
    value: 0.461
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.41
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.511
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.835
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Odvykam
type: MusicRecording
duration: PT2M55S
duration ms: 175400
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:29:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2099da1d94b3a422b40c66028708ed236073b71ee473b5ab962a89dc5eef926b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2099da1d94b3a422b40c66028708ed236073b71ee473b5ab962a89dc5eef926b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204012 — a six-check JSON result.
  date published: 2026-07-31T13:50:38Z
audio: Odvykam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.735
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.547
  additional property: Energy
    type: PropertyValue
    value: 0.432
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.144
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.236
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.848
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chvile louceni
type: MusicRecording
duration: PT4M36S
duration ms: 276920
explicit: false
by artist: Pavel Bobek
by artist: Lída Nopová
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZUM70700073
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:30:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f635239821f6f776d1743d1f105235999d51a67a188ed996590d424d91ffaee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM70700073
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f635239821f6f776d1743d1f105235999d51a67a188ed996590d424d91ffaee. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM70700073 — a six-check JSON result.
  date published: 2026-07-31T13:50:38Z
audio: Chvile louceni
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.2
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.502
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.075
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.299
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.149
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.042
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Oh, Ruby, nechtej mi lasku brat
type: MusicRecording
duration: PT2M51S
duration ms: 171040
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:29:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb27d3435534ffe90d19f23983a5a876f639ca640e0e5299ab65f8c741be9184
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb27d3435534ffe90d19f23983a5a876f639ca640e0e5299ab65f8c741be9184. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204010 — a six-check JSON result.
  date published: 2026-07-31T05:17:02Z
audio: Oh, Ruby, nechtej mi lasku brat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.778
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.681
  additional property: Energy
    type: PropertyValue
    value: 0.667
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.018
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.876
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.987
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zmiram laskou
type: MusicRecording
duration: PT3M12S
duration ms: 192400
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T06:57:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae7f3cefd6412173c3b18a1a3530b95712ba1fa3a4f6ae452fb7fbc647b92b36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f3cefd6412173c3b18a1a3530b95712ba1fa3a4f6ae452fb7fbc647b92b36. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204004 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Zmiram laskou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.451
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.571
  additional property: Energy
    type: PropertyValue
    value: 0.452
  additional property: Speechiness
    type: PropertyValue
    value: 0.025
  additional property: Acousticness
    type: PropertyValue
    value: 0.392
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.246
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.543
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rokenrolu dal jsem vsechny nejlepsi sve dny
type: MusicRecording
duration: PT5M4S
duration ms: 304840
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:09:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x257d52389505f0fbab55df3b77fc6344fda738a44714c24ce279ac0e0e45a8d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257d52389505f0fbab55df3b77fc6344fda738a44714c24ce279ac0e0e45a8d6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204015 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Rokenrolu dal jsem vsechny nejlepsi sve dny
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.136
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.404
  additional property: Energy
    type: PropertyValue
    value: 0.501
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.069
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.056
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.361
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.926
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Houston
type: MusicRecording
duration: PT2M40S
duration ms: 160986
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:43:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfea3cc2038a384e5c0d793a30037121451d0c963ee72c1ab12a1e66d09baf426
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960370
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea3cc2038a384e5c0d793a30037121451d0c963ee72c1ab12a1e66d09baf426. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204017 — a six-check JSON result.
  date published: 2026-07-31T08:38:45Z
audio: Houston
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.647
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.631
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.28
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.068
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ved me dal, cesto ma
type: MusicRecording
duration: PT2M51S
duration ms: 171626
explicit: false
by artist: Pavel Bobek
by artist: Lída Nopová
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T22:33:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09793a093ae722836f80db9773f15975dd1ad6f8793c925c633a25e453b3eaa9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09793a093ae722836f80db9773f15975dd1ad6f8793c925c633a25e453b3eaa9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204016 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Ved me dal, cesto ma
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.131
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.524
  additional property: Energy
    type: PropertyValue
    value: 0.722
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.199
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.58
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.969
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pojd dal a zpivej
type: MusicRecording
duration: PT3M22S
duration ms: 202826
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA120204018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:31:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdad29bfdaa177b7061226ec8bb171f4db787c6d6804dccaa168c6d7eca52d27e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204018
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad29bfdaa177b7061226ec8bb171f4db787c6d6804dccaa168c6d7eca52d27e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA120204018 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Pojd dal a zpivej
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.334
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.531
  additional property: Energy
    type: PropertyValue
    value: 0.568
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.419
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.365
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.969
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vis, kdo ti smi z tvych vlasku copy splest ?
type: MusicRecording
duration: PT2M48S
duration ms: 168520
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA129803012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:50:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff3ffcb44eba99886ae3edcd03290a59957323dc276c61acfe0df25fd94c4f22
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3ffcb44eba99886ae3edcd03290a59957323dc276c61acfe0df25fd94c4f22. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803012 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vis, kdo ti smi z tvych vlasku copy splest ?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.253
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.457
  additional property: Energy
    type: PropertyValue
    value: 0.387
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.839
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.812
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.124
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.669
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hejno padlych andelu
type: MusicRecording
duration: PT4M1S
duration ms: 241040
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA129803008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:03:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a953a8f2e0525c3df917c8c2ee8aed6ae7f34ade349af3550d9755e8b1c58fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a953a8f2e0525c3df917c8c2ee8aed6ae7f34ade349af3550d9755e8b1c58fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803008 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Hejno padlych andelu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.029
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.573
  additional property: Energy
    type: PropertyValue
    value: 0.517
  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.785
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.392
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.369
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vincent
type: MusicRecording
duration: PT3M35S
duration ms: 215053
explicit: false
by artist: Pavel Bobek
in album: Vsem divkam, co jsem mel kdy rad
  type: MusicAlbum
  date published: 2014-01-01
isrc code: CZA129803020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:42:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec11f7a37d6d53041cfdc83e1703cb5aaac235c35c64ed19847254df5bf44502
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803020
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec11f7a37d6d53041cfdc83e1703cb5aaac235c35c64ed19847254df5bf44502. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129803020 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Vincent
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.949
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.424
  additional property: Energy
    type: PropertyValue
    value: 0.411
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.843
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.802
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.651
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.571
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mirek Černý 80 Jubilejní Edice
type: MusicAlbum
date published: 2017-08-18
track: Mám Rád
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144920
  explicit: false
  by artist: Miroslav Černý
  by artist: studiová skupina Zdeňka Charlieho Blažka
  by artist: Sbor Studiové skupiny Zdeňka Charlieho Blažka
  in album: Mirek Černý 80 Jubilejní Edice
    type: MusicAlbum
    date published: 2017-08-18
  popularity: 2
  isrc code: CZA129911001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T12:10:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7ec5bade60645720dba3110f285ab3a7643e847977941f18b6a4f703a5242d6c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960258
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960258
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129911001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T12:45:34Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec5bade60645720dba3110f285ab3a7643e847977941f18b6a4f703a5242d6c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129911001 — a six-check JSON result.
    date published: 2026-07-30T12:45:34Z
  audio: Mám Rád
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.199
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.532
    additional property: Energy
      type: PropertyValue
      value: 0.452
    additional property: Speechiness
      type: PropertyValue
      value: 0.023
    additional property: Acousticness
      type: PropertyValue
      value: 0.148
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.382
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.87
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Balíček Karet
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261333
  explicit: false
  by artist: Miroslav Černý
  by artist: Rangers
  in album: Mirek Černý 80 Jubilejní Edice
    type: MusicAlbum
    date published: 2017-08-18
  popularity: 2
  isrc code: CZA166900468
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T08:06:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900468
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900468 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Balíček Karet
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.562
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.503
    additional property: Energy
      type: PropertyValue
      value: 0.519
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.78
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.086
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.467
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.725
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Kdepak Obyčejný Lidi Jsou
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172840
  explicit: false
  by artist: Miroslav Černý
  in album: Mirek Černý 80 Jubilejní Edice
    type: MusicAlbum
    date published: 2017-08-18
  popularity: 1
  isrc code: CZUM71700241
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:15:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb4ba525267b228af4bf0afa7ff48e532246f2468d28be859ac49e4afcd3f7b42
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Kdepak Obyčejný Lidi Jsou
track: Dík Za Váš Úsměv
track: Hirošima
track: Vždycky Jsem To Já
track: Sto Let
track: Big Bad John
track: Kluk A Strom
track: Poslední Večeře
track: Vítěz
track: Zatím Co Ty Spíš
track: Čaroděj Koloděj
track: Dlouhý Schody
track: Chtěl Bych

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960368

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71700241

OTSTimestamp
type: PropertyValue
value: 2026-07-31T08:26:41Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba525267b228af4bf0afa7ff48e532246f2468d28be859ac49e4afcd3f7b42. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71700241 — a six-check JSON result.
date published: 2026-07-31T08:26:41Z

Kdepak Obyčejný Lidi Jsou
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.151
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.597
additional property: Energy
  type: PropertyValue
  value: 0.666
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.329
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.346
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.853
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.214
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Dík Za Váš Úsměv
type: MusicRecording
duration: PT4M21S
duration ms: 261213
explicit: false
by artist: Miroslav Černý
by artist: Skupina Groš
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA167200035
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03a656717c329b805bce1eba9af444ec21a4b5949967cede91f4472e59a00aa4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960429
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960429
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200035
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:07:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a656717c329b805bce1eba9af444ec21a4b5949967cede91f4472e59a00aa4. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200035 — a six-check JSON result.
  date published: 2026-07-31T16:07:24Z
audio: Dík Za Váš Úsměv
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.935
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.584
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.112
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.054
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.904
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.86
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hirošima
type: MusicRecording
duration: PT4M53S
duration ms: 293333
explicit: false
by artist: Jaromír Mayer
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
genre: classic-czech-pop
isrc code: CZA167500243
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:46:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x377a043cd78ee58887429750e46abb4b492de23e08fcf14ae144f8a21f340982
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500243
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377a043cd78ee58887429750e46abb4b492de23e08fcf14ae144f8a21f340982. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500243 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Hirošima
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.291
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.389
  additional property: Energy
    type: PropertyValue
    value: 0.303
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.36
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.044
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.33
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.483
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Vždycky Jsem To Já
type: MusicRecording
duration: PT4M20S
duration ms: 260133
explicit: false
by artist: Dalibor Janda
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 0
isrc code: CZA168700207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:25:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3118e4ba4c3a0f67b580ed57988388408d0c4e613239c9ca1a18c8d39b5454fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3118e4ba4c3a0f67b580ed57988388408d0c4e613239c9ca1a18c8d39b5454fd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168700207 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vždycky Jsem To Já
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.307
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.311
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.803
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.147
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.066
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sto Let
type: MusicRecording
duration: PT4M4S
duration ms: 244853
explicit: false
by artist: Miroslav Černý
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA166900057
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T21:47:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa94fc87ab8cd6f69ce9a5c4556b85a23aeaec48454f6cc22213a44cafcc8747d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900057
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94fc87ab8cd6f69ce9a5c4556b85a23aeaec48454f6cc22213a44cafcc8747d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900057 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sto Let
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.384
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.47
  additional property: Energy
    type: PropertyValue
    value: 0.37
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.699
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.183
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.679
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.917
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Big Bad John
type: MusicRecording
duration: PT3M2S
duration ms: 182400
explicit: false
by artist: Miroslav Černý
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 2
isrc code: CZA129810060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T03:41:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d1183b771999d5ae902444ab35d67104c935dcf412b7a4cc569a9dda368de8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960344
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129810060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1183b771999d5ae902444ab35d67104c935dcf412b7a4cc569a9dda368de8d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA129810060 — a six-check JSON result.
  date published: 2026-07-31T04:14:58Z
audio: Big Bad John
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.349
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.567
  additional property: Energy
    type: PropertyValue
    value: 0.542
  additional property: Speechiness
    type: PropertyValue
    value: 0.147
  additional property: Acousticness
    type: PropertyValue
    value: 0.737
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.543
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.806
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kluk A Strom
type: MusicRecording
duration: PT7M6S
duration ms: 426466
explicit: false
by artist: Miroslav Černý
by artist: Jiří Svoboda
by artist: Studiový orchestr
by artist: Bezinky
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA167800111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e3142122e91cc1c32b7e4ee43afdbcfdcca806f97be13a41d4b8072eb527cf7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3142122e91cc1c32b7e4ee43afdbcfdcca806f97be13a41d4b8072eb527cf7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800111 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Kluk A Strom
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.683
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.553
  additional property: Energy
    type: PropertyValue
    value: 0.612
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.045
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.691
  additional property: Liveness
    type: PropertyValue
    value: 0.308
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.784
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.07
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Poslední Večeře
type: MusicRecording
duration: PT3M40S
duration ms: 220453
explicit: false
by artist: Miroslav Černý
by artist: Rangers
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA167000406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T00:36:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc759f9ea3c3b21c8db3eb279be544f6ace1fde61a5ab7fb288c4cb256e950ac7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc759f9ea3c3b21c8db3eb279be544f6ace1fde61a5ab7fb288c4cb256e950ac7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000406 — a six-check JSON result.
  date published: 2026-07-08T03:39:04Z
audio: Poslední Večeře
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.767
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.524
  additional property: Energy
    type: PropertyValue
    value: 0.615
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.773
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.732
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.102
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vítěz
type: MusicRecording
duration: PT5M46S
duration ms: 346306
explicit: false
by artist: Miroslav Černý
by artist: Jiří Svoboda
by artist: Studiový orchestr
by artist: Bezinky
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA167800115
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T22:16:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84f09166e6f12f840a0bf8e844449bef023c43a75b70d5d97b69e38c3cbaa08d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800115
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f09166e6f12f840a0bf8e844449bef023c43a75b70d5d97b69e38c3cbaa08d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800115 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vítěz
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.69
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.539
  additional property: Energy
    type: PropertyValue
    value: 0.651
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.095
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.333
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.87
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.516
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Zatím Co Ty Spíš
type: MusicRecording
duration: PT5M15S
duration ms: 315506
explicit: false
by artist: Miroslav Černý
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 4
isrc code: CZA167000040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T10:36:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2661485f8bae9d86352a74c37b874fad0498d114d5df5f423fd49fd3946e9ef5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000040
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2661485f8bae9d86352a74c37b874fad0498d114d5df5f423fd49fd3946e9ef5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000040 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Zatím Co Ty Spíš
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.194
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.29
  additional property: Energy
    type: PropertyValue
    value: 0.574
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.36
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.607
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.241
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Čaroděj Koloděj
type: MusicRecording
duration: PT4M47S
duration ms: 287066
explicit: false
by artist: Miroslav Černý
by artist: Jiří Svoboda
by artist: Studiový orchestr
by artist: Bezinky
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZA167800114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb64ba441cf328c51cda9648043a9e8c6355a2e18f69bca486a5e0867f4d35433
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64ba441cf328c51cda9648043a9e8c6355a2e18f69bca486a5e0867f4d35433. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167800114 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Čaroděj Koloděj
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.902
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.664
  additional property: Energy
    type: PropertyValue
    value: 0.706
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.121
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.058
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.944
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.664
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Dlouhý Schody
type: MusicRecording
duration: PT3M27S
duration ms: 207133
explicit: false
by artist: Karel Kahovec
by artist: Mour Jaroslava Uhlíře
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 2
genre: big-beat
isrc code: CZA168200061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:03:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae2cbbf5d860654e7833e81d0a16f6a3b5616de4e4bfdb4747b445f347933fb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168200061
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2cbbf5d860654e7833e81d0a16f6a3b5616de4e4bfdb4747b445f347933fb7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168200061 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Dlouhý Schody
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.026
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.737
  additional property: Energy
    type: PropertyValue
    value: 0.516
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.269
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.664
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.443
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chtěl Bych
type: MusicRecording
duration: PT2M29S
duration ms: 149933
explicit: false
by artist: Miroslav Černý
in album: Mirek Černý 80 Jubilejní Edice
  type: MusicAlbum
  date published: 2017-08-18
popularity: 1
isrc code: CZUM71700243
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:43:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5b088d443139fe5926e6af4bcb677ddab0fdd30dbd2e88f451908d206ed7fca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71700243
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b088d443139fe5926e6af4bcb677ddab0fdd30dbd2e88f451908d206ed7fca. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71700243 — a six-check JSON result.
  date published: 2026-07-30T18:23:33Z
audio: Chtěl Bych
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.009
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.412
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.406
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.139
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.597
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.14
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Country Gold 60. & 70. Léta
type: MusicAlbum
date published: 2018-03-02
track: Oh, Ruby, Nechtěj Mi Lásku Brát
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172373
  explicit: false
  by artist: Pavel Bobek
  in album: Country Gold 60. & 70. Léta
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 0
  isrc code: CZA161100542
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T21:17:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdecc9cb5c2c7b767ddad4ebbf41e3275934758220286670d60e736b7afab8124
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100542
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecc9cb5c2c7b767ddad4ebbf41e3275934758220286670d60e736b7afab8124. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100542 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Oh, Ruby, Nechtěj Mi Lásku Brát
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.848
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.594
    additional property: Energy
      type: PropertyValue
      value: 0.538
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.017
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.863
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.939
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Blizzard
  type: MusicRecording
  duration: PT3M31S
  duration ms: 211466
  explicit: false
  by artist: Jiří Grossmann
  in album: Country Gold 60. & 70. Léta
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 3
  isrc code: CZA166700298
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T06:25:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x402f498f403844b4d9f18ba09dc4088fa09041e56b8d85af316897bb0fc20a41
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700298
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402f498f403844b4d9f18ba09dc4088fa09041e56b8d85af316897bb0fc20a41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166700298 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Blizzard
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.108
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.494
    additional property: Energy
      type: PropertyValue
      value: 0.476
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.631
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.025
    additional property: Liveness
      type: PropertyValue
      value: 0.142
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.697
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.97
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Zrádný Banjo
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151466
  explicit: false
  by artist: KTO
  in album: Country Gold 60. & 70. Léta
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 5
  isrc code: CZA167000373
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T00:59:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x03b6273837706140aaef7ad8b03ebf203e99cc694eb95d67ce703d34e2ad84af
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Zrádný Banjo

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000373

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6273837706140aaef7ad8b03ebf203e99cc694eb95d67ce703d34e2ad84af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167000373 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Zrádný Banjo
type: AudioObject